BLACKROCK INCOME TRUST INC
N-30D, 1999-07-01
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- --------------------------------------------------------------------------------
                        THE BLACKROCK INCOME TRUST INC.
                       SEMI-ANNUAL REPORT TO SHAREHOLDERS
                          REPORT OF INVESTMENT ADVISER
- --------------------------------------------------------------------------------

                                                                    May 31, 1999




Dear Shareholder:

     Since  the  Trust's  last  report,  interest  rates  rose  sharply  as U.S.
economic  growth  remained  strong,  labor  markets  tightened and international
markets  began  to  recover. In light of these factors, on May 18 members of the
Federal  Reserve's Federal Open Market Committee announced that they had adopted
a  bias  towards  higher  interest  rates, citing a concern that inflation might
start to accelerate.

     BlackRock  has  adopted  a  cautious view of the bond market, as we believe
that  there  is  a real possibility that the Federal Reserve will raise interest
rates  in  the  near  future. Additionally, because the Treasury yield curve has
already  priced  in  Federal Reserve action, we believe that interest rates will
trade in a relatively narrow range until the economy shows signs of slowing.

     This  report  contains  comments  from  your Trust's managers regarding the
markets  and  portfolio  in  addition  to the Trust's financial statements and a
detailed  portfolio  listing.  We thank you for your continued investment in the
Trust.


Sincerely,

/s/Laurence D. Fink     /s/Ralph L. Schlosstein
- ------------------      -----------------------
Laurence D. Fink        Ralph L. Schlosstein
Chairman                President


                                       1


<PAGE>


                                                                   May 31, 1999

Dear Shareholder:

     We  are  pleased to present the semi-annual report for The BlackRock Income
Trust  Inc. (the "Trust") for the six months ended April 30, 1999. We would like
to  take  this opportunity to review the Trust's stock price and net asset value
(NAV)  performance,  summarize  market developments and discuss recent portfolio
management activity.

     The  Trust  is  a  diversified, actively managed closed-end bond fund whose
shares  are  traded  on  the New York Stock Exchange under the symbol "BKT". The
Trust's  investment  objective is to provide high current income consistent with
the  preservation  of  capital.  The  Trust  seeks  this  objective by investing
primarily  in  mortgage-backed  securities  backed  by  U.S. Government agencies
(such  as  Fannie  Mae, Freddie Mac or Ginnie Mae) and, to a lesser extent, U.S.
Government   securities,   asset-backed   securities   and   privately   issued
mortgage-backed  securities.  At  least 85% of the Trust's assets must be issued
or  guaranteed by the U.S. government or its agencies or rated "AAA" by Standard
&  Poor's or "Aaa" by Moody's (up to 5% can be unrated and deemed by the Adviser
to  be  of  equivalent  credit quality); the remaining 15% of the Trust's assets
must  be  rated at least "AA" by Standard & Poor's or "Aa" by Moody's at time of
purchase.

     The  table  below summarizes the performance of the Trust's stock price and
NAV over the period:




<TABLE>
<CAPTION>
                              -------------------------------------------------------
                              4/30/99     10/31/98     CHANGE       HIGH        LOW
<S>                           <C>         <C>          <C>         <C>         <C>
- -------------------------------------------------------------------------------------
 STOCK PRICE                  $6.8125     $6.9375      (1.80%)     $7.0625     $6.75
- -------------------------------------------------------------------------------------
 NET ASSET VALUE (NAV)        $7.79       $7.94        (1.89%)     $8.09       $7.61
- -------------------------------------------------------------------------------------
 10-YEAR U.S. TREASURY NOTE    5.35%       4.61%       16.05%       5.42%       4.52%
- -------------------------------------------------------------------------------------
</TABLE>

THE FIXED INCOME MARKETS

     The  past  six  months have witnessed continued rapid expansion of the U.S.
economy.  GDP  growth  for  the  first quarter of 1999 is estimated at an annual
rate  above 4%, far exceeding the historical non-inflationary level of 2%. While
BlackRock  believes  that  growth  may  slow down in the second half of 1999, we
anticipate  GDP  to  remain  above  3% for the year. Despite the strong economic
growth,  inflation  has  stayed  surprisingly  subdued.  A significant factor in
maintaining  low  inflation  in  the  U.S.  economy  stems  from the increase in
industrial  productivity. Higher productivity has allowed manufacturers to avoid
price increases despite tight labor markets.

     The  Treasury  market  briefly  rallied early in the fourth quarter of 1998
before  dramatically reversing in 1999. For the semi-annual period, the yield of
the  10-year  Treasury  security rose from 4.61% on October 31, 1998 to 5.35% on
April  30,  1999.  The weak performance of the Treasury market can be attributed
to  investors  leaving the safe haven of Treasuries to purchase credit sensitive
or  higher  yielding  securities  in reaction to inflationary concerns voiced by
the Federal Reserve.

     As   interest   rates  rose  and  alleviated  prepayment  fears,  mortgages
significantly  outperformed  the  broader  investment  grade bond market for the
semi-annual   period.  As  measured  by  the  LEHMAN  BROTHERS  MORTGAGE  INDEX,
mortgages  posted  a  2.39%  total  return  versus 0.68% for the LEHMAN BROTHERS
AGGREGATE   INDEX.  After  significantly  underperforming  Treasuries  in  1998,
mortgages  experienced  a  significant  rally  late  in 1998 into the first four
months  of  1999. Although yields have tightened significantly from early in the
fourth  quarter of 1998 mortgages remain at attractive levels as record issuance
has  come to market and created favorable supply and demand technicals. Although
higher  mortgage  rates  have  allayed prepayment fears, the fact that mortgages
rates still remain at historically low levels should temper enthusiasm.


                                       2


<PAGE>


THE TRUST'S PORTFOLIO AND INVESTMENT STRATEGY

     BlackRock  actively  manages the Trust's portfolio holdings consistent with
BlackRock's  overall  market  outlook and the Trust's investment objectives. The
Trust  is  managed  to  maintain  an  interest  rate  sensitivity  (or duration)
resembling  that  of  the  Salomon  Brothers Mortgage Index; this means that the
portfolio's  NAV  will change similarly to the price of the Index given a change
in  interest rates. The following chart compares the Trust's current and October
31, 1998 asset composition.

     The  following  chart  compares  the  Trust's  current and October 31, 1998
asset composition:
<TABLE>
<CAPTION>

                                SECTOR BREAKDOWN

  -------------------------------------------------------------------------------
   COMPOSITION                                   APRIL 30, 1999   OCTOBER 31, 1998
   <S>                                                <C>               <C>
  -------------------------------------------------------------------------------
   Interest Only Mortgage-Backed Securities           19%                6%
  -------------------------------------------------------------------------------
   Mortgage Pass-Throughs                             17%                6%
  -------------------------------------------------------------------------------
   U.S. Government Securities                         16%               17%
  -------------------------------------------------------------------------------
   Adjustable & Inverse Floating Rate Mortgages       11%               17%
  -------------------------------------------------------------------------------
   Agency Multiple Class Mortgage Pass-Throughs        9%               19%
  -------------------------------------------------------------------------------
   FHA Project Loans                                   8%                9%
  -------------------------------------------------------------------------------
   Principal Only Mortgage-Backed Securities           8%                9%
  -------------------------------------------------------------------------------
   Commercial Mortgage-Backed Securities               7%               10%
  -------------------------------------------------------------------------------
   Asset Backed Securities                             3%                3%
  -------------------------------------------------------------------------------
   CMO Residuals                                       1%                1%
  -------------------------------------------------------------------------------
   Non-Agency Multiple Class Mortgage Pass-Throu       1%                3%
  -------------------------------------------------------------------------------
</TABLE>

     The  Trust  has  continued  to  emphasize mortgage products with relatively
strong  prepayment  protection, including deals backed by lower-coupon mortgages
and  structured  bonds  with  prepayment  lockout.  The  Trust has purchased IOs
(Interest-Only  securities)  as  a  defensive  strategy. IOs help to protect the
value  of a portfolio in a rising interest rate environment by appreciating when
mortgages extend.

     We  look  forward  to  continuing  to  manage the Trust to benefit from the
opportunities  available  to investors in the fixed income markets as well as to
maintain  the  Trust's  ability  to meet its investment objectives. We thank you
for  your  investment  in  the  BlackRock  Income Trust Inc. Please feel free to
contact  our  marketing  center  at  (800)  227-7BFM (7236) if you have specific
questions which were not addressed in this report.

Sincerely,

<TABLE>
<CAPTION>
<S>                                    <C>                                     <C>
/s/Robert S. Kapito                    /s/Keith T. Anderson                    /s/Michael P. Lustig
- -------------------                    --------------------                    --------------------
Robert S. Kapito                       Keith T. Anderson                       Michael P. Lustig
Vice Chairman and Portfolio Manager    Chief Investment Officer-Fixed Income   Director and Portfolio Manager
BlackRock Financial Management, Inc.   BlackRock Financial Management, Inc.    BlackRock Financial Management, Inc.
</TABLE>

                                       3


<PAGE>


  ------------------------------------------------------------------------------
                         THE BLACKROCK INCOME TRUST INC.
  ------------------------------------------------------------------------------
   Symbol on New York Stock Exchange:                               BKT
  ------------------------------------------------------------------------------
   Initial Offering Date:                                     July 22, 1988
  ------------------------------------------------------------------------------
   Closing Stock Price as of 4/30/99:                          $6.8125
  ------------------------------------------------------------------------------
   Net Asset Value as of 4/30/99:                              $7.79
  ------------------------------------------------------------------------------
   Yield on Closing Stock Price as of 4/30/99 ($6.8125)1:       8.26%
  ------------------------------------------------------------------------------
   Current Monthly Distribution per Share2:                    $0.046875
  ------------------------------------------------------------------------------
   Current Annualized Distribution per Share2:                 $0.562500
  ------------------------------------------------------------------------------

1  Yield on Closing Stock Price is calculated by dividing the current annualized
   distribution per share by the closing stock price per share.

2  The distribution is not constant and is subject to change.


                                       4


<PAGE>


- --------------------------------------------------------------------------------
THE BLACKROCK INCOME TRUST INC.
PORTFOLIO OF INVESTMENTS
APRIL 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------
<TABLE>
<CAPTION>
               PRINCIPAL
                 AMOUNT                                                      VALUE
  RATING*        (000)                    DESCRIPTION                       (NOTE 1)
- --------------------------------------------------------------------------------------
<S>           <C>                   <C>                                            <C>
                            LONG-TERM INVESTMENTS-138.3%
                            MORTGAGE PASS-THROUGHS-36.8%
                            Federal Home Loan Mortgage Corp.,
               $ 1,000       6.50%, 5/17/99 (TBA) ......................   $   995,000
                 3,283+      7.50%, 7/01/07 - 2/1/23 ...................     3,331,891
                   832+      8.00%, 11/01/15 ...........................       865,072
                 1,207       8.50%, 3/01/06 - 3/1/08, 15 year ..........     1,261,445
                 2,015       9.00%, 9/01/20 ............................     2,147,866
                            Federal Housing Administration,
                 1,304       Allen Oaks, 8.60%, 8/1/33 .................     1,306,847
                 2,983       Beachtree, 10.25%, 6/1/32 .................     3,213,862
                 4,205       Brookville, 7.50%, 8/1/28 .................     4,276,628
                             GMAC,
                 6,081        Series 33, 7.43%, 9/1/21 .................     6,233,032
                 2,110        Series 46, 7.43%, 3/1/22 .................     2,163,284
                   869        Series 48, 7.43%, 8/1/22 .................       872,974
                 1,635        Series 51, 7.43%, 2/1/23 .................     1,655,305
                 6,807        Series 56, 7.43%, 11/1/22 ................     6,931,682
                 1,216       Merrill, Series 54, 7.43%, 2/1/23 .........     1,237,664
                 1,246       Middlesex, 8.63%, 9/1/34 ..................     1,306,134
                 4,395       Parkside, 7.30%, 8/1/13 ...................     4,437,159
                 1,026       Reilly, Series 41, 8.77%, 12/1/18 .........     1,149,011
                 2,843       Tuttle Grove, 7.25%, 10/1/35 ..............     2,874,057
                             USGI,
                 4,242        Polaris 982, 7.43%, 11/1/21 ..............     4,348,867
                   906        Series 87, 7.43%, 12/1/22 ................       917,651
                 4,768        Series 99, 7.43%, 10/1/23 ................     4,896,080
                 2,700        Series 1003, 7.43%, 3/1/24 ...............     2,738,094
                 2,693        Series 6302, 7.43%, 12/1/21 ..............     2,727,201
                 1,670       Wilshire Manor, 8.50%, 8/1/33 .............     1,669,320
                 6,873       Yorkville Series 6094, 7.43%,
                              6/1/21 ...................................     6,997,844
                            Federal National Mortgage Association,
                19,914+      5.50%, 12/1/13 - 2/1/14, 15 year ..........    19,316,887
                55,744++     6.50%, 5/17/99 - 03/01/29 .................    55,384,253
                 7,237       7.00%, 6/1/26 - 3/1/29 ....................     7,331,957
                 5,669+      7.50%, 11/1/14 - 9/1/23, 18 year
                             Multifamily ...............................     5,813,010
                 4,083+      8.00%, 5/1/08 - 5/1/22 Multifamily              4,246,272
                   711       9.32%, 6/1/19, 10 year Multifamily                790,120
                    74       9.50%, 1/1/19 - 6/1/20 ....................        78,888
                 1,432+      9.50%, 6/1/24, Multifamily ................     1,502,143
                            Government National
                             Mortgage Association,
                   507       7.00%, 10/15/17 ...........................       514,710
                 6,783+      7.50%, 8/15/21 - 12/15/23 .................     6,991,169
                 6,683       8.00%, 10/15/22 - 2/15/29 .................     6,963,223
                    13       8.50%, 5/15/01 - 2/15/17 ..................        13,845
                   536       9.00%, 6/15/18 - 9/15/21 ..................       572,621
                                                                           -----------
                                                                           180,073,068
                                                                           -----------

<CAPTION>

======================================================================================
               PRINCIPAL
                 AMOUNT                                                   VALUE
  RATING*        (000)                    DESCRIPTION                   (NOTE 1)
- --------------------------------------------------------------------------------------
<S>           <C>                   <C>                                            <C>
                              MULTIPLE CLASS MORTGAGE
                              PASS-THROUGHS-28.5%
AAA            $    653@      Collateralized Mortgage Obligation
                              Trust, Series 13, Class Q,
                               1/20/03, (ARM) ............................   $   685,866
                              Countrywide Funding Corp.,
                              Mortgage Certificates,
AAA                3,394      Series 1993-10, Class A-8,
                               1/25/24, (ARM) ............................     3,312,908
AAA                6,202      Series 1994-9, Class A-16,
                               5/25/24, (ARM) ............................     5,736,401
                              Federal Home Loan Mortgage Corp.,
                              Multiclass Mortgage Participation
                              Certificates,
                   1,252      Series G-24, Class G-24-SG,
                               11/25/23, (ARM) ...........................     1,139,496
                   6,614      Series 1104, Class 1104-L,
                               6/15/21 ...................................     6,876,476
                     686      Series 1160, Class 1160-F,
                               10/15/21, (ARM) ...........................       786,935
                   1,742      Series 1347, Class 1347-HC,
                               12/15/21 ..................................     1,660,875
                     465      Series 1534, Class1534-NE,
                               6/15/23, (ARM) ............................       434,987
                     728      Series 1541, Class 1541-T,
                               7/15/23 ...................................       721,861
                   1,206      Series 1559, Class 1559-WA,
                               7/15/22 ...................................     1,205,188
                   5,615      Series 1580, Class 1580-SD,
                               9/15/08 ...................................     5,727,361
                  13,281+     Series 1584, Class 1584-FB,
                               9/15/23 ...................................    13,867,044
                   1,195      Series 1590, Class 1590-OA,
                               10/15/23, (ARM) ...........................     1,244,585
                     262      Series 1609, Class 1609-KA,
                               11/15/23 ..................................       259,557
                     500      Series 1625, Class 1625-SL,
                               12/15/08, (ARM) ...........................       512,500
                   6,543      Series 1627, Class 1627-S,
                               12/15/23, (ARM) ...........................     5,431,410
                   5,038      Series 1627, Class 1627-SC,
                               12/15/23, (ARM) ...........................     3,842,426
                   3,084      Series 1629, Class 1629-OD,
                               12/15/23, (ARM) ...........................     2,516,031
                   8,000      Series 1673, Class 1673-SD,
                               2/15/24, (ARM) ............................     7,541,250
                   5,778      Series 1699, Class 1699-ST,
                               3/15/24 ...................................     4,709,390
                   4,492      Series 1900, Class 1900-SV,
                                8/15/08, (ARM) ............................      641,086
</TABLE>

See Notes to Financial Statements.
                                       5


<PAGE>


<TABLE>
<CAPTION>
======================================================================================
               PRINCIPAL
                 AMOUNT                                                     VALUE
  RATING*        (000)                    DESCRIPTION                     (NOTE 1)
- --------------------------------------------------------------------------------------
<S>            <C>           <C>                                         <C>
                             Federal National Mortgage Association,
                             REMIC Pass-Through Certificates,
               $    361      Trust G93-27, Class 27-SB,
                              8/25/23, (ARM) .........................   $   319,738
                  2,096@     Trust 1988-16, Class 16-B,
                              6/25/18 ................................     2,236,532
                  3,701@     Trust 1990-12, Class 12-G,
                              2/25/20 ................................     3,539,936
                  1,888      Trust 1991-38, Class 38-F,
                              4/25/21, (ARM) .........................     1,954,196
                  1,598@     Trust 1991-38, Class 38-SA,
                              4/25/21, (ARM) .........................     1,609,199
                  1,977      Trust 1991-87, Class 87-S,
                              8/25/21, (ARM) .........................     2,252,006
                  1,679      Trust 1991-145, Class 145-S,
                              10/25/06, (ARM) ........................     1,931,409
                  5,129+     Trust 1992-43, Class 43-E,
                              4/25/22 ................................     5,218,850
                    210      Trust 1993-50, Class 50-SH,
                              1/25/23, (ARM) .........................       203,312
                    578      Trust 1993-87, Class 87-L,
                              6/25/23 ................................       574,347
                    266      Trust 1993-116, Class 116-SB,
                              7/25/23, (ARM) .........................       232,906
                   466@      Trust 1993-129, Class 129-SE,
                              8/25/08, (ARM) .........................       463,618
                    197      Trust 1993-167, Class 167-SA,
                              9/25/23, (ARM) .........................       196,764
                  6,000@@    Trust 1993-169, Class 169-SC,
                              3/25/23, (ARM) .........................     5,255,160
                  3,000      Trust 1993-170, Class 170-SC,
                              9/25/08, (ARM) .........................     2,949,030
                     97      Trust 1993-178, Class 178-A,
                              9/25/23 ................................        96,300
                    335      Trust 1993-183, Class 183-SM,
                              10/25/23, (ARM) ........................       334,076
                  4,000      Trust 1993-196, Class 196-SC,
                              10/25/08, (ARM) ........................     4,007,480
                  5,835      Trust 1993-214, Class 214-S,
                              12/25/08 ...............................     5,762,451
                    970      Trust 1993-224, Class 224-S,
                              11/25/23, (ARM) ........................       821,992
                    618      Trust 1993-224, Class 224-SH,
                              11/25/23, (ARM) ........................       535,881
                  2,562      Trust 1993-247, Class 247-SN,
                              12/25/23, (ARM) ........................     2,856,245
                  3,347      Trust 1993-248, Class 248-FB,
                              9/25/23, (ARM) .........................     3,159,074
                  2,651      Trust 1993-256, Class 256-F,
                              11/25/23, (ARM) ........................     2,417,876
                    387      Trust 1994-27, Class 27-SE,
                              3/25/23, (ARM) .........................       393,571
                  1,000      Trust 1994-50, Class 50-S,
                              3/25/24 ................................       910,000
                  6,797++    Trust 1996-14, Class 14-M,
                              10/25/21 ...............................     6,017,541
AAA               8,598      G. E. Capital Mortgage Services Inc.,
                             REMIC Certificate 94-7, Class A-17,
                               2/25/09, (ARM) .........................    7,494,974

<CAPTION>
======================================================================================
               PRINCIPAL
                 AMOUNT                                                   VALUE
  RATING*        (000)                    DESCRIPTION                   (NOTE 1)
- --------------------------------------------------------------------------------------
<S>           <C>                   <C>                                            <C>
                              Prudential Home Mortgage Securities Co.,
                               Mortgage Pass-Through Certificates,
Aaa              $    743      Series 1993-43, Class A-16,
                                10/25/23, (ARM) ........................   $   709,469
Aaa                 2,500      Series 1993-48, Class A-8,
                                12/25/08, (ARM) ........................     2,137,525
AAA                 4,190     Salomon Capital Access Corp.,
                               Series 1986-1, Class C, 9/1/15 ..........     4,245,161
                                                                           -----------
                                                                           139,690,252
                                                                           -----------
                              INTEREST ONLY MORTGAGE-BACKED
                              SECURITIES-25.7%
AAA                 3,124     Asset Securitization Corp.,
                               Series 1997-D5, Class PS-1,
                                2/14/43 ................................       288,601
                              BA Mortgage Securities Inc.,
Aaa                 3,082      Series 1997-1, Class X,
                                7/25/26 ................................       400,763
AAA                 2,675      Series 1998-1, Class 2X,
                                5/25/13 ................................       361,089
AAA                43,574     Credit Suisse First Boston Mortgage
                               Securities Corp., Trust
                               1997-C1, Class C1-AX**/***,
                                6/20/29 ................................     4,073,772
                              Federal Home Loan Mortgage Corp.,
                               Multiclass Mortgage Participation
                               Certificates,
                   27,426+     Series G-13, Class 13-PP,
                                5/25/21 ................................     5,319,630
                   28,598      Series 184, Class 184-IO,
                                12/1/26 ................................     6,412,258
                    1,893      Series 1238, Class 1238-J,
                                1/15/07 ................................       343,550
                   17,481      Series 1353, Class 1353-S,
                                8/15/07 ................................     1,165,263
                      149      Series 1473, Class 1473-JA,
                                2/15/05 ................................         1,316
                   12,000++    Series 1506, Class 1506-L,
                                5/15/08 ................................     1,676,880
                    7,472      Series 1632, Class 1632-S,
                                4/15/23 ................................       181,933
                      687      Series 1720, Class 1720-PK,
                                1/15/24 ................................       213,423
                   53,000      Series 1809, Class 1809-SC,
                                12/15/23 ...............................     4,659,230
                    4,564      Series 1882, Class 1882-PJ,
                                4/15/22 ................................       636,606
                    7,639      Series 1910, Class 1910-IC,
                                5/15/25 ................................     1,260,990
                   62,901      Series 1914, Class 1914-PC,
                                12/15/11 ...............................     1,168,074
                    3,707      Series 1917, Class 1917-AS,
                                5/15/08 ................................       535,253
                   17,938      Series 1946, Class 1946-SG,
                                3/15/24 ................................     1,766,748
                   11,214      Series 1992, Class 1992-PV,
                                9/15/27 ................................     4,246,212
                   14,271      Series 1998-27, Class 27-L,
                                3/25/20 ................................     1,530,656
</TABLE>

See Notes to Financial Statements.
                                       6


<PAGE>


<TABLE>
<CAPTION>
======================================================================================
               PRINCIPAL
                 AMOUNT                                                      VALUE
  RATING*        (000)                    DESCRIPTION                       (NOTE 1)
- --------------------------------------------------------------------------------------
<S>           <C>               <C>                                        <C>
               $    15,106      Series 2002, Class 2002-HJ,
                                 10/15/08 ..............................   $ 1,615,458
                     9,795      Series 2037, Class 2037-IB,
                                 12/15/26 ..............................     2,097,954
                    10,000      Series 2062, Class 2062-QL,
                                 3/15/28 ...............................     2,943,596
                     4,500      Series 2066, Class 2066-PJ,
                                 12/15/26 ..............................     1,228,248
                    18,000      Series 2080, Class 2080-PL,
                                 1/15/27 ...............................     5,242,500
                    23,000      Series 2130, Class 2130-SC,
                                 3/15/29 ...............................     2,443,750
                               Federal National Mortgage Association,
                                REMIC Pass-Through Certificates,
                     2,918      Trust A, Class A-2, 8/1/10 .............       374,915
                     8,203      Trust G15, Class 15-S,
                                 6/25/21 ...............................       853,121
                       964      Trust G50, Class 50-G, 12/25/21 ........       298,434
                     2,551      Trust G92-34, Class 34-A, 4/25/22 ......       710,727
                     9,038      Trust G92-60, Class 60-SB,
                                 10/25/22 ..............................       345,237
                     2,768      Trust 1992-5, Class 5-H,
                                 1/25/22 ...............................       606,054
                       722      Trust 1992-12, Class 12-C,
                                 2/25/22 ...............................       186,227
                     2,229      Trust 1992-187, Class 187-JA,
                                 10/25/06 ..............................       140,641
                     7,500      Trust 1992-200, Class 200-K,
                                 11/25/21 ..............................       827,263
                     8,775      Trust 1993-46, Class 46-S,
                                 5/25/22 ...............................       530,356
                    11,796      Trust 1993-199, Class 199-SB,
                                 10/25/23 ..............................       698,548
                    16,000      Trust 1993-201, Class 201-JC,
                                 5/25/19 ...............................     2,184,160
                     8,530      Trust 1993-202, Class 202-QA,
                                 6/25/19 ...............................       654,422
                    13,192      Trust 1995-26, Class 26-SW,
                                 2/25/24 ...............................     1,795,970
                    12,371      Trust 1996-68, Class 68-SC,
                                 1/25/24 ...............................     1,445,847
                    64,380      Trust 1997-37, Class 37-SE,
                                 10/25/22 ..............................     1,322,169
                    25,000      Trust 1997-50, Class 50-HK,
                                 8/25/27 ...............................     8,336,318
                    12,875      Trust 1997-50, Class 50-SI,
                                 4/25/23 ...............................       354,050
                    35,476      Trust 1997-65, Class 65-SB,
                                 3/25/24 ...............................     1,454,430
                    27,000      Trust 1997-65, Class 65-SG,
                                 2/25/15 ...............................     3,704,063
                    11,139      Trust 1997-76, Class 76-SP,
                                 12/25/22 ..............................     1,723,913
                    51,000++    Trust 1997-90, Class 90-M,
                                 1/25/28 ...............................    16,981,406
                    13,328      Trust 1998-12, Class 12-PL,
                                 7/18/19 ...............................     1,666,060

<CAPTION>
======================================================================================
               PRINCIPAL
                 AMOUNT                                                      VALUE
  RATING*        (000)                    DESCRIPTION                       (NOTE 1)
- --------------------------------------------------------------------------------------
<S>           <C>              <C>                                        <C>
              $    16,693      Trust 1998-16, Class 16-PK,
                                12/18/21 ..............................   $ 2,401,179
                    7,378      Trust 1998-25, Class 25-PG,
                                3/18/22 ...............................     1,272,754
                   10,000      Trust 1998-45, Class 45-PL,
                                3/18/24 ...............................     2,550,000
AAA                   787     First Boston Mortgage Securities Corp.,
                               Series 1987-C, Class C-Z,
                                4/15/17 ...............................       251,466
AAA                46,359     GMAC Commercial Mortgage
                               Securities Inc.,
                               Trust 1997-C1, Class C1-X,
                                7/15/27 ...............................     4,020,477
AAA                66,812     Goldman Sachs Mortgage Securities
                               Corp., Mortgage Participation
                               Certifcates, Series 1998-5, Class 5**,
                                2/19/25 ...............................     1,659,871
                              Government National Mortgage
                               Association,
                    8,000      Trust 1999-3, Class 3-S,
                                2/16/29 ...............................       850,000
                  120,104      Trust 1999-5, Class 5-S,
                                2/16/29 ...............................     5,517,257
                   75,000      Trust 1999-8, Class 8-S,
                                3/16/29 ...............................     3,375,000
AAA                41,760     Hanover Grantor Trust,
                               Series 1999-1, Class 1-A**,
                                4/28/10 ...............................     1,422,436
AAA                 1,009     Kidder Peabody Acceptance Corp.,
                               Series B, Class B-2,
                                4/22/18 ...............................       192,904
AAA                19,694     Morgan Stanley Capital 1 Inc.,
                               Trust 1997-HF1, Class HF1-X**,
                                6/15/17 ...............................     1,712,493
Aaa               137,283     Prudential Home Mortgage Securities Co.,
                               Mortgage Pass-Through Certificates,
                               Series 1994-5, Class A-9,
                                2/25/24 ...............................       986,718
AAA                   238     Prudential Securities Inc.,
                               Trust 15, Class 1-G,
                                5/20/21 ...............................       224,305
AAA                 1,471     Structured Asset Securities Corp.,
                               Series 1991-2, Class GA,
                                12/20/21 ..............................       426,103
                                                                          -----------
                                                                          125,871,047
                                                                          -----------
                               PRINCIPAL ONLY MORTGAGE-BACKED
                               SECURITIES-10.8%
Aaa                   757      Chase Mortgage Finance Corp.,
                                Mortgage Pass-Through
                                Certificates,
                                Series 1994-A, Class A-P,
                                 1/25/10 ..............................       634,330
AAA                   720      Collateralized Mortgage Obligation
                                Trust, Series 29, Class A,
                                 5/23/17 ..............................       580,396
</TABLE>

See Notes to Financial Statements.
                                       7


<PAGE>


<TABLE>
<CAPTION>
======================================================================================
               PRINCIPAL
                 AMOUNT                                                      VALUE
  RATING*        (000)                    DESCRIPTION                       (NOTE 1)
- --------------------------------------------------------------------------------------
<S>           <C>               <C>                                        <C>
                              Drexel Burnham Lambert, Inc.,
AAA           $     271        Trust K, Class K-1,
                                9/23/17 .............................   $  238,115
AAA               2,689        Trust V, Class V-1A,
                                9/1/18 ..............................    2,220,174
                              Federal Home Loan Mortgage Corp.,
                               Multiclass Mortgage Participation
                               Certificates,
                  2,101        Series T-8, Class A-10,
                                8/15/27 .............................    1,265,565
                    667        Series 1418, Class 1418-M,
                                11/15/22 ............................      334,319
                  1,225        Series 1750, Class 1750-PC,
                                3/15/24 .............................    1,082,778
                  2,815++      Series 1828, Class 1828-A,
                                5/15/24 .............................    1,992,802
                  1,989+       Series 1857, Class 1857-PB,
                                12/15/08 ............................    1,725,920
                  5,500        Series 2009, Class 2009-HJ,
                                10/15/22 ............................    3,908,410
                    900        Series 2087, Class 2087- PO,
                                9/15/25 .............................      646,547
                              Federal National Mortgage Association,
                               REMIC Pass-Through Certificates,
                  1,428        Trust G93-2, Class 2-KB,
                                1/25/23 .............................      734,600
                  3,787        Trust 225, Class 1,
                                6/1/23 ..............................    3,116,580
                  3,461        Trust 279, Class 279-1,
                                7/1/26 ..............................    2,915,509
                    746        Trust 1991-7, Class 7-J,
                                2/25/21 .............................      598,074
                  2,696+       Trust 1993-213, Class 213-H,
                                9/25/23 .............................    2,649,793
                  1,658        Trust 1994-9, Class 9-C,
                                8/25/23 .............................    1,526,683
                  1,252        Trust 1996-5, Class 5-PV,
                                11/25/23 ............................    1,019,221
                 14,300        Trust 1996-14, Class 14-PE,
                                8/25/23 .............................    6,649,500
                  4,690++      Trust 1996-38, Class 38-E,
                                8/25/23 .............................    3,948,444
                  3,769        Trust 1997-85, Class 85-EL,
                                7/25/23 .............................    3,372,958
                    551        Trust 1997-85, Class 85-LE,
                                10/25/23 ............................      477,603
                  9,000        Trust 1998-26, Class 26-L,
                                3/25/23 .............................    6,602,908
                  1,345        Trust 1998-48, Class 48-P,
                                8/18/28 .............................      949,873
AAA               1,429        First Union Residential, Mortgage
                               Certificate,
                               Series 1999-A, Class 11-AP,
                                3/25/15 .............................    1,001,248
AAA              13,000        Fund America Investment Corp.,
                               Series 1993-C, Class B,
                                4/29/30 .............................    1,999,010

<CAPTION>
======================================================================================
               PRINCIPAL
                 AMOUNT                                                   VALUE
  RATING*        (000)                    DESCRIPTION                    (NOTE 1)
- --------------------------------------------------------------------------------------
<S>           <C>               <C>                                        <C>
                             Housing Security Inc.,
AAA            $     197      Series 1992-EB, Class B-8,
                               9/25/22 .............................   $  162,780
AA+                  477      Series 1993-D, Class D-8,
                               6/25/23 .............................      359,847
AAA                  539     Structured Mortgage Asset Trust,
                              Series 1993-3C, Class CX,
                               4/25/24 .............................      400,824
                                                                       ----------
                                                                       53,114,811
                                                                       ----------
                             COMMERCIAL MORTGAGE-BACKED
                             SECURITIES-9.4%
AAA               17,525++   GMAC Commercial Mortgage
                              Securities Inc., Trust 1998-C2,
                              Class C2-A2,
                               6.42%, 8/15/08 ......................   17,576,725
AAA                6,000     Merrill Lynch Mortgage Investors Inc.,
                              Series 1996-C1, Class A-3,
                               7.42%, 4/25/28 ......................    6,225,975
AAA               10,250     NYC Mortgage Loan Trust,
                              Series 1996, Class A-2**/***,
                               6.75%, 6/25/11 ......................   10,288,437
AA                 2,000     PaineWebber Mortgage Acceptance
                              Corp. IV, Series1995-M1, Class B**,
                               6.95%, 1/15/07 ......................    2,032,876
AAA               10,000     Prudential Securities Secured
                              Financing Corp.,
                              Series 1998-C1, Class A-1B,
                               6.51%, 7/15/08 ......................    9,979,507
                                                                       ----------
                                                                       46,103,520
                                                                       ----------
                             ASSET-BACKED SECURITIES-3.8%
AAA               11,600     Chase Credit Card Master Trust,
                              Series 1997-5, Class A,
                               6.19%, 8/15/05 ......................   11,691,401
AAA                2,496     Chase Manhattan Grantor Trust,
                              Series 1996-B, Class A,
                               6.61%, 9/15/02 ......................    2,517,771
A                  4,581     Money Store Trust,
                              Series 1998-A, Class MH-2,
                               7.23%, 5/15/24 ......................    4,518,120
                                                                       ----------
                                                                       18,727,292
                                                                       ----------
                             U.S GOVERNMENT AND AGENCY
                             SECURITIES-22.2%
                             Overseas Private Investment Corp.,
                     264      5.46%, 5/29/12 .......................      255,501
                     240      5.79%, 5/29/12 .......................      233,272
                     310      5.88%, 5/29/12 .......................      303,582
                     200      6.27%, 5/29/12 .......................      199,618
                     400      6.84%, 5/29/12 .......................      406,395
                             Small Business Administration,
                   4,150      Series 1996-20E,
                               7.60%, 5/1/16 .......................    4,352,290
                   3,756      Series 1996-20F,
                               7.55%, 7/1/16 .......................    3,961,929
</TABLE>

See Notes to Financial Statements.
                                       8


<PAGE>


<TABLE>
<CAPTION>
======================================================================================
               PRINCIPAL
                 AMOUNT                                                   VALUE
  RATING*        (000)                    DESCRIPTION                    (NOTE 1)
- --------------------------------------------------------------------------------------
<S>           <C>               <C>                                        <C>
              $      3,528      Series 1996-20H,
                                 7.25%, 8/1/16 ..........................   $  3,653,961
                     6,378      Series 1996-20K,
                                 6.95%, 11/1/16 .........................      6,518,328
                     3,539      Series 1996-20K,
                                 7.55%, 6/1/16 ..........................      3,702,356
                     2,744      Series 1997-20C,
                                 7.15%, 3/1/17 ..........................      2,827,569
                     5,490      Series 1998-10A,
                                 6.12%, 2/10/08 .........................      5,435,081
                                United States Treasury Bonds,
                    55,000++     Zero Coupon, 8/15/17 ...................     18,296,300
                    46,356+      3.63%, 4/15/28 (TIPS) ..................     44,429,226
                    15,000       5.25%, 2/15/29 .........................     14,081,250
                                                                            ------------
                                                                             108,656,658
                                                                            ------------
                                COLLATERALIZED MORTGAGE OBLIGATION
                                RESIDUALS***-0.6%
AAA                  5,435      American Housing Trust III, Senior
                                 Mortgage Pass-Through
                                 Certificates, Series 1, Class 4,
                                  (REMIC)**, 3/25/19 ....................        760,914
AAA                    246      American Housing Trust VII, Senior
                                 Mortgage Pass-Through
                                 Certificates, Series A, Class R,
                                  11/25/20 ..............................      1,767,148
AAA                     25      Collateralized Mortgage Obligation
                                 Trust, Series 13**, Class R,
                                  1/20/03, (ARM) ........................         49,799
AAA                     45      FBC Mortgage Securities Trust 16,
                                 CMO, Series A-1**, 7/1/17 ..............        117,265
NR                      43      PaineWebber Trust,
                                 Series N, Class 7,
                                  (REMIC), 1/1/19 .......................         98,900
                                                                            ------------
                                                                               2,794,026
                                                                            ------------
                    NOTIONAL
                     AMOUNT
                     (000)
                   ---------
                                OPTIONS PURCHASED-0.5%
                                CALL OPTION-0.3%
                    97,000      Interest Rate Swap, 5.85% over 3
                                 month LIBOR, expires 8/07/00 ............      1,611,684
                                                                             ------------
                                PUT OPTION-0.2%
                   150,000      Interest Rate Swap, 7.25% over
                                 3 month LIBOR, expires 5/12/00 ..........        739,500
                                                                             ------------
                                Total Options Purchased ..................      2,351,184
                                                                             ------------
                                Total Long-Term Investments
                                 (cost $674,108,967)......................    677,381,858
                                                                             ------------

======================================================================================
               PRINCIPAL
                 AMOUNT                                                   VALUE
  RATING*        (000)                    DESCRIPTION                    (NOTE 1)
- --------------------------------------------------------------------------------------
<S>           <C>               <C>                                        <C>
                                SHORT-TERM INVESTMENT-0.1%
                                DISCOUNT NOTE
                       435      Federal Home Loan Mortgage Corp.,
                                 4.82%, 5/3/99
                                 (cost 434,884) ..........................   $    434,884
                                                                             ------------
                                Total Investments-138.4%
                                 (cost $674,543,851)......................    677,816,742
                                Liabilities in excess of other
                                 assets -(38.4)% .........................   (187,931,475)
                                                                             ------------
                                NET ASSETS-100% ..........................   $489,885,267
                                                                             ============
</TABLE>

- ---------------------
  * Using the higher of Standard & Poor's, Moody's or Fitch's rating.
 ** Private placements restricted as to resale.
*** Illiquid securities representing 2.1% of portfolio assets.
  + (Partial) principal amount pledged as collateral for reverse repurchase
    agreements.
 ++ Entire  principal  amount  pledged  as  collateral  for reverse repurchase
     agreements.
  @ (Partial) principal amount pledged as collateral for futures
    transactions.
 @@ Entire principal amount pledged as collateral for futures
    transactions.



- --------------------------------------------------------------------------------
                               KEY TO ABBREVIATIONS
    ARM     - Adjustable Rate Mortgage.
    CMO     - Collateralized Mortgage Obligation.
    LIBOR   - London InterBank Offer Rate.
    REMIC   - Real Estate Mortgage Investment Conduit.
    TBA     - To Be Allocated.
    TIPS    - Treasury Inflation Protection Securities.
- --------------------------------------------------------------------------------










See Notes to Financial Statements.
                                       9


<PAGE>

- --------------------------------------------------------------------------------
THE BLACKROCK INCOME TRUST INC.
STATEMENT OF ASSETS AND LIABILITIES
APRIL 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------

ASSETS
Investments, at value (cost $674,543,851) (Note 1).....   $677,816,742
Cash ..................................................         37,192
Interest receivable ...................................      6,506,930
Interest rate caps, at value
 (amortized cost $7,189,998) (Notes 1 & 3) ............      1,906,970
Receivable for investments sold .......................        386,061
                                                          ------------
                                                           686,653,895
                                                          ------------
LIABILITIES
Reverse repurchase agreements (Note 4) ................    163,964,500
Payable for investments purchased .....................     22,575,632
Due to broker-variation margin ........................      8,524,053
Unrealized depreciation on interest rate swaps
  (Note 1 & 3) ........................................        670,800
Interest payable ......................................        445,801
Investment advisory fee payable (Note 2) ..............        265,681
Administration fee payable (Note 2) ...................         81,748
Other accrued expenses ................................        240,413
                                                          ------------
                                                           196,768,628
                                                          ------------
NET ASSETS ............................................   $489,885,267
                                                          ============
Net assets were comprised of:
  Common stock, at par (Note 5) .......................   $    628,499
 Paid-in capital in excess of par .....................    563,355,769
                                                          ------------
                                                           563,984,268
 Undistributed net investment income ..................      2,461,434
 Accumulated net realized losses ......................    (66,863,339)
 Net unrealized depreciation ..........................     (9,697,096)
                                                          ------------
Net assets, April 30, 1999 ............................   $489,885,267
                                                          ============
NET ASSET VALUE PER SHARE:
 ($489,885,267 \d 62,849,878 shares of
  common stock issued and outstanding) ................          $7.79
                                                                 =====

- --------------------------------------------------------------------------------
THE BLACKROCK INCOME TRUST INC.
STATEMENT OF OPERATIONS
SIX MONTHS ENDED APRIL 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------

NET INVESTMENT INCOME
Income
  Interest (net of premium amortization of
  $10,940,833 and interest expense of
  $4,973,007).....................................................  $20,363,904
                                                                    -----------
Expenses
 Investment advisory .............................................    1,607,289

 Administration ..................................................      494,550

 Transfer agent ..................................................       71,000

 Reports to shareholders .........................................       66,000

 Custodian .......................................................       63,000

 Directors .......................................................       45,000

 Audit ...........................................................       37,000

 Legal ...........................................................        4,000

 Miscellaneous ...................................................       89,152
                                                                    -----------
  Total operating expenses .......................................    2,476,991
                                                                    -----------
 Net investment income ...........................................   17,886,913
                                                                    -----------
REALIZED AND UNREALIZED GAIN (LOSS)
ON INVESTMENTS (NOTE 3)
Net realized gain (loss) on:
 Investments .....................................................    8,093,260

 Futures .........................................................   (7,379,280)

 Short sales .....................................................     (586,305)

 Swaps ...........................................................      354,761
                                                                    -----------
                                                                        482,436
                                                                    -----------
Net change in unrealized appreciation
  (depreciation) on:
 Investments .....................................................   (7,579,944)

 Interest rate caps ..............................................    1,450,602

 Futures .........................................................   (4,292,339)

 Swaps ...........................................................      538,939
                                                                    -----------
                                                                     (9,882,742)
                                                                    -----------
 Net loss on investments .........................................   (9,400,306)
                                                                    -----------
NET INCREASE IN NET ASSETS
RESULTING FROM OPERATIONS ........................................  $ 8,486,607
                                                                    ===========

See Notes to Financial Statements.
                                       10


<PAGE>


- --------------------------------------------------------------------------------
THE BLACKROCK INCOME TRUST INC.
STATEMENT OF CASH FLOWS
SIX MONTHS ENDED APRIL 30, 1999 (UNAUDITED)
- --------------------------------------------------------------------------------

RECONCILIATION OF NET INCREASE IN NET ASSETS
 RESULTING FROM OPERATIONS TO NET
 CASH FLOWS PROVIDED BY OPERATING ACTIVITIES
Net increase in net assets resulting from operations .....   $ 8,486,607
                                                             -----------
Decrease in investments ..................................     5,755,713
Net realized gain ........................................      (482,436)
Decrease in unrealized appreciation ......................     9,882,742
Increase in interest rate caps ...........................      (412,856)
Increase in interest receivable ..........................      (661,105)
Increase in due to broker-variation margin ...............     9,409,057
Increase in receivable for investments sold ..............      (349,894)
Increase in payable for investments purchased ............    21,587,877
Decrease in depreciation on interest rate swaps ..........      (538,939)
Decrease in interest payable .............................      (251,682)
Decrease in accrued expenses and other liabilities .......      (621,606)
                                                             -----------
 Total adjustments .......................................    43,316,871
                                                             -----------
Net cash provided by operating activities ................   $51,803,478
                                                             ===========
INCREASE (DECREASE) IN CASH
Net cash flows provided by operating activities ..........   $51,803,478
                                                             -----------
Cash flows used for financing activities:
  Decrease in reverse repurchase agreements ..............   (34,371,393)
 Cash dividends paid .....................................   (17,676,069)
                                                             -----------
Net cash flows used for financing activities .............   (52,047,462)
                                                             -----------
 Net decrease in cash ....................................      (243,984)
 Cash at beginning of period .............................       281,176
                                                             -----------
 Cash at end of period ...................................       $37,192
                                                             ===========



- --------------------------------------------------------------------------------
THE BLACKROCK INCOME TRUST INC.
STATEMENTS OF CHANGES
IN NET ASSETS (UNAUDITED)
- --------------------------------------------------------------------------------

                                          SIX MONTHS ENDED     YEAR ENDED
                                              APRIL 30,        OCTOBER 31,
                                                1999              1998
                                          ----------------    ------------
INCREASE (DECREASE)
IN NET ASSETS

Operations:

 Net investment income ................. $ 17,886,913       $ 39,232,720

 Net realized gain .....................      482,436         10,438,423

 Net change in net unrealized
   appreciation (depreciation) .........   (9,882,742)       (25,473,755)
                                         ------------       ------------

 Net increase in
   net assets resulting from
   operations ..........................    8,486,607         24,197,388

Dividends from net investment
  income ...............................  (17,676,069)       (35,352,217)
                                         ------------       ------------

 Total decrease ........................   (9,189,462)       (11,154,829)


NET ASSETS
 Beginning of period ...................  499,074,729        510,229,558
                                         ------------       ------------

 End of period ......................... $489,885,267       $499,074,729
                                         ============       ============


See Notes to Financial Statements.
                                       11


<PAGE>


- --------------------------------------------------------------------------------
THE BLACKROCK INCOME TRUST INC.
FINANCIAL HIGHLIGHTS (UNAUDITED)
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                 SIX MONTHS
                                                                   ENDED
                                                               APRIL 30, 1999
PER SHARE OPERATING PERFORMANCE:                               ---------------
<S>                                                            <C>
Net asset value, beginning of period .....................       $   7.94
                                                                 --------
 Net investment income (net of $0.08, $0.19, $0.18,
   $0.17, $0.22 and $0.10, respectively,
   of interest expense) ..................................            .29
 Net realized and unrealized gains (losses) ..............           (.16)
                                                                 --------
Net increase (decrease) from investment
 operations ..............................................            .13
                                                                 --------
Dividends from net investment income .....................           (.28)
Distributions in excess of net investment income .........              -
Return of capital distribution ...........................              -
                                                                 --------
 Total dividends and distributions .......................           (.28)
                                                                 --------
Net asset value, end of period* ..........................       $   7.79
                                                                 ========
Per share market value, end of period* ...................       $   6.81
                                                                 ========
TOTAL INVESTMENT RETURN+ ................................            2.22%

RATIOS TO AVERAGE NET ASSETS:
Operating expenses# ......................................           1.00%+++
Net investment income ....................................           7.25%+++

SUPPLEMENTAL DATA:
Average net assets (in thousands) ........................       $497,416
Portfolio turnover .......................................             54%
Net assets, end of period (in thousands) .................       $489,885
Reverse repurchase agreements outstanding,
 end of period (in thousands) ............................       $163,965
Asset coverage++ .......................................         $  3,990



<CAPTION>
                                                                                 YEAR ENDED OCTOBER 31,
                                                             -------------------------------------------------------------
                                                               1998         1997         1996         1995          1994
PER SHARE OPERATING PERFORMANCE:                               ----         ----         ----         ----          ----
<S>                                                          <C>          <C>          <C>          <C>          <C>
Net asset value, beginning of period .....................  $   8.12    $   7.61     $   7.66     $   7.25      $   8.75
                                                            --------    --------     --------     --------      --------
 Net investment income (net of $0.08, $0.19, $0.18,
   $0.17, $0.22 and $0.10, respectively,
   of interest expense) ..................................       .62         .58          .55          .51           .73
 Net realized and unrealized gains (losses) ..............      (.24)        .49         (.01)         .65         (1.45)
                                                            --------    --------     --------     --------      --------
Net increase (decrease) from investment
 operations ..............................................       .38        1.07          .54         1.16          (.72)
                                                            --------    --------     --------     --------      --------
Dividends from net investment income .....................      (.56)       (.56)        (.55)        (.66)         (.78)
Distributions in excess of net investment income .........         -           -         (.04)           -             -
Return of capital distribution ...........................         -           -            -         (.09)            -
                                                            --------    --------     --------     --------      --------
 Total dividends and distributions .......................      (.56)       (.56)        (.59)        (.75)         (.78)
                                                            --------    --------     --------     --------      --------
Net asset value, end of period* ..........................  $   7.94    $   8.12     $   7.61     $   7.66      $   7.25
                                                            ========    ========     ========     ========      ========
Per share market value, end of period* ...................  $   6.94    $   6.88     $   6.25     $   7.25      $   6.38
                                                            ========    ========     ========     ========      ========
TOTAL INVESTMENT RETURN+ ................................       9.29%      19.68%       (5.36%)      26.50%       (15.31%)
RATIOS TO AVERAGE NET ASSETS:
Operating expenses# ......................................      1.01%       1.02%        1.08%        1.08%         1.10%
Net investment income ....................................      7.74%       7.63%        7.36%        6.85%         9.21%
SUPPLEMENTAL DATA:
Average net assets (in thousands) ........................  $506,858    $474,903     $473,056     $466,449      $496,707
Portfolio turnover .......................................       214%        220%         440%         267%          223%
Net assets, end of period (in thousands) .................  $499,075    $510,230     $478,085     $481,301      $455,651
Reverse repurchase agreements outstanding,
 end of period (in thousands) ............................  $198,336    $228,530     $204,438     $214,438      $109,286
Asset coverage++ .......................................    $  3,520    $  3,233     $  3,339     $  3,244      $  5,169
</TABLE>

- ----------
 *  NAV and market value are published in THE WALL STREET JOURNAL each Monday.
 #  The ratios of operating  expenses  including interest expense to average net
    assets were 3.02%+++,  3.33%,  3.44%, 3.38%, 4.08% and 2.32% for the periods
    indicated above, respectively.
 +  Total  investment  return  is calculated assuming a purchase of common stock
    at the  current  market  price  on  the  first day and a sale at the current
    market price  on  the  last  day  of  each  period  reported.  Dividends and
    distributions  are   assumed,  for  purposes  of  this  calculation,  to  be
    reinvested  at prices obtained under the Trust's dividend reinvestment plan.
    This  calculation does  not  reflect brokerage commissions. Total investment
    returns for periods of less than one full year are not annualized.
 ++ Per $1,000 of reverse repurchase agreement outstanding.
+++ Annualized.


The  information  above  represents  the  unaudited  operating performance for a
share  of  common  stock outstanding, total investment return, ratios to average
net  assets and other supplemental data, for each of the periods indicated. This
information  has  been  determined  based upon financial information provided in
the financial statements and market value data for the Trust's shares.


                       See Notes to Financial Statements.

                                       12


<PAGE>


- --------------------------------------------------------------------------------
THE BLACKROCK INCOME TRUST INC.
NOTES TO FINANCIAL STATEMENTS (UNAUDITED)
- --------------------------------------------------------------------------------

NOTE 1. ORGANIZATION              The BlackRock Income Trust Inc. (the "Trust"),
& ACCOUNTING                      a   Maryland  corporation,  is  a  diversified
POLICIES                          closed-end management in-vestment company. The
                                  investment  objective  of  the  Trust  is   to
achieve high monthly income consistent with preservation of capital. The ability
of issuers of debt securities held by the Trust to meet their obligations may be
affected by economic developments in a specific industry or region. No assurance
can be given that the Trust's investment objective will be achieved.

     The  following  is a summary of significant accounting policies followed by
the Trust.

SECURITIES  VALUATION: The  Trust values mortgage-backed, asset-backed and other
debt  securities,  interest  rate  swaps,  caps,  floors and non-exchange traded
options  on  the  basis  of  current  market  quotations  provided by dealers or
pricing  services approved by the Trust's Board of Directors. In determining the
value  of  a  particular  security, pricing services may use certain information
with  respect  to  transactions  in  such  securities,  quotations from dealers,
market  transactions in comparable securities, various relationships observed in
the  market between securities, and calculated yield measures based on valuation
technology  commonly employed in the market for such securities. Exchange-traded
options  are valued at their last sales price as of the close of options trading
on  the  applicable exchanges. In the absence of a last sale, options are valued
at  the  average of the quoted bid and asked prices as of the close of business.
A  futures  contract  is  valued  at  the last sale price as of the close of the
commodities  exchange  on  which it trades unless the Trust's Board of Directors
determines  that  such  price  does not reflect its fair value, in which case it
will  be  valued  at  its  fair  value  as  determined  by  the Trust's Board of
Directors.  Any  securities  or  other  assets  for  which  such  current market
quotations  are  not readily available are valued at fair value as determined in
good  faith  under  procedures  established by and under the general supervision
and responsibility of the Trust's Board of Directors.

     Short-term  securities  which  mature  in  60  days  or  less are valued at
amortized  cost,  if  their term to maturity from date of purchase is 60 days or
less.  Short-term  securities  with a term to maturity greater than 60 days from
the date of purchase are valued at current market quotations until maturity.

     In  connection  with  transactions  in  repurchase  agreements, the Trust's
custodian  takes  possession  of the underlying collateral securities, the value
of  which  at  least  equals the principal amount of the repurchase transaction,
including  accrued  interest.  To  the  extent  that  any repurchase transaction
exceeds  one  business day, the value of the collateral is marked-to-market on a
daily  basis  to  ensure  the adequacy of the collateral. If the seller defaults
and  the  value  of  the  collateral  declines  or if bankruptcy proceedings are
commenced  with  respect  to  the  seller  of  the  security, realization of the
collateral by the Trust may be delayed or limited.

OPTION  SELLING/PURCHASING: When  the  Trust  sells  or  purchases an option, an
amount  equal  to  the  premium  received  or paid by the Trust is recorded as a
liability  or  an asset and is subsequently adjusted to the current market value
of  the  option  written or purchased. Premiums received or paid from writing or
purchasing  options  which  expire  unexercised  are treated by the Trust on the
expiration  date as realized gains or losses. The difference between the premium
and  the  amount  paid  or  received  on  effecting  a  closing purchase or sale
transaction,  including  brokerage  commissions,  is  also treated as a realized
gain  or  loss. If an option is exercised, the premium paid or received is added
to  the  proceeds  from  the sale or cost of the purchase in determining whether
the  Trust  has realized a gain or a loss on investment transactions. The Trust,
as  writer  of  an  option,  may  have  no  control  over whether the underlying
securities  may  be  sold  (call)  or  purchased (put) and as a result bears the
market  risk  of  an  unfavorable change in the price of the security underlying
the written option.

     Options,  when  used by the Trust, help in maintaining a targeted duration.
Duration  is  a measure of the price sensitivity of a security or a portfolio to
relative  changes  in  interest  rates.  For instance, a duration of "one" means
that  a  portfolio's  or  a  security's  price  would  be  expected to change by
approximately  one  percent with a one percent change in interest rates, while a
duration  of  five  would  imply  that  the  price would move approximately five
percent in relation to a one percent change in interest rates.

     Option  selling  and purchasing is used by the Trust to effectively "hedge"
positions,  or  collections  of  positions, so that changes in interest rates do
not  change  the  duration  of the portfolio unexpectedly. In general, the Trust
uses  options  to hedge a long or short position or an overall portfolio that is
longer  or  shorter  than  the  benchmark  security.  A  call  option  gives the
purchaser  of  the  option  the right (but not obligation) to buy, and obligates
the  seller  to  sell (when the option is exercised), the underlying position at
the  exercise price at any time or at a specified time during the option period.
A  put option gives the holder the right to sell and obligates the writer to buy
the  underlying  position  at  the  exercise price at any time or at a specified
time  during  the  option  period.  Put  options can be purchased to effectively
hedge  a  position or a portfolio against price declines if a portfolio is long.
In  the  same  sense, call options can be purchased to hedge a portfolio that is
shorter  than  its  benchmark against price changes. The Trust can also sell (or
write) covered call options and put options to hedge portfolio positions.


                                       13


<PAGE>


     The  main  risk  that  is  associated  with  purchasing options is that the
option  expires  without  being  exercised.  In  this  case,  the option expires
worthless  and  the premium paid for the option is considered the loss. The risk
associated  with  writing  call  options  is  that  the  Trust  may  forego  the
opportunity  for  a  profit  if  the  market  value  of  the underlying position
increases  and  the option is exercised. The risk in writing put options is that
the  Trust  may  incur  a  loss  if  the market value of the underlying position
decreases  and  the option is exercised. In addition, as with futures contracts,
the  Trust  risks  not  being  able  to enter into a closing transaction for the
written option as the result of an illiquid market.

INTEREST  RATE  SWAPS: In  a  simple  interest  rate  swap,  one investor pays a
floating  rate  of  interest on a notional principal amount and receives a fixed
rate  of  interest  on the same notional principal amount for a specified period
of  time. Alternatively, an investor may pay a fixed rate and receive a floating
rate.  Rate  swaps  are  efficient  as asset/liability management tools. In more
complex  swaps,  the  notional  principal  amount may decline (or amortize) over
time.

     During  the  term  of  the  swap,  changes  in  the  value  of the swap are
recognized  as  unrealized gains or losses by "marking-to-market" to reflect the
market  value  of the swap. When the swap is terminated, the Trust will record a
realized  gain  or  loss  equal  to the difference between the proceeds from (or
cost  of) the closing transaction and the Trust's basis in the contract, if any.


     The  Trust is exposed to credit loss in the event of non-performance by the
other  party to the swap. However, the Trust closely monitors swaps and does not
anticipate non-performance by any counterparty.

SWAP  OPTIONS: Swap  options  are  similar  to options on securities except that
instead  of  selling  or  purchasing  the  right  to buy or sell a security, the
writer  or purchaser of the swap option is granting or buying the right to enter
into  a  previously  agreed upon interest rate swap agreement at any time before
the  expiration  of  the  option.  Premiums  received  or  paid  from writing or
purchasing  options  are  recorded as liabilities or assets and are subsequently
adjusted  to  the  current  market  value  of  the  option written or purchased.
Premiums  received  or  paid  from  writing  or purchasing options which expires
unexercised  are  treated  by the Trust on the expiration date as realized gains
or  losses.  The  difference between the premium and the amount paid or received
on  effecting  a  closing  purchase  or  sale  transaction,  including brokerage
commission,  is  also  treated  as  a  realized  gain  or  loss. If an option is
exercised,  the  premium paid or received is added to the proceeds from the sale
or  cost of the purchase in determining whether the Trust has realized a gain or
loss on investment transactions.

     The  main  risk that is associated with purchasing swap options is that the
swap  option  expires  without being exercised. In this case, the option expires
worthless  and  the premium paid for the swap option is considered the loss. The
main  risk  that  is  associated with the writing of a swap option is the market
risk  of an unfavorable change in the value of the interest rate swap underlying
the written swap option.

     Swap  options  may  be  used  by  the  Trust  to manage the duration of the
Trust's portfolio in a manner similar to more generic options described above.

FINANCIAL  FUTURES  CONTRACTS: A  futures  contract  is an agreement between two
parties  to  buy  and  sell  a  financial instrument for a set price on a future
date.  Initial margin deposits are made upon entering into futures contracts and
can  be  either  cash  or  securities. During the period the futures contract is
open,  changes  in  the value of the contract are recognized as unrealized gains
or  losses  by "marking- to-market" on a daily basis to reflect the market value
of  the contract at the end of each day's trading. Variation margin payments are
made  or  received,  depending  upon  whether  unrealized  gains  or  losses are
incurred.  When  the  contract  is  closed, the Trust records a realized gain or
loss  equal to the difference between the proceeds from (or cost of) the closing
transaction and the Trust's basis in the contract.

     Financial  futures contracts, when used by the Trust, help in maintaining a
targeted  duration.  Futures  contracts  can  be  sold to effectively shorten an
otherwise  longer  duration  portfolio. In the same sense, futures contracts can
be  purchased  to lengthen a portfolio that is shorter than its duration target.
Thus,  by buying or selling futures contracts, the Trust can effectively "hedge"
positions  so  that  changes in interest rates do not change the duration of the
portfolio unexpectedly.

     The  Trust  may  invest  in  financial  futures contracts primarily for the
purpose  of  hedging  its  existing portfolio securities or securities the Trust
intends  to  purchase  against  fluctuations  in  value  caused  by  changes  in
prevailing  market  interest rates. Should interest rates move unexpectedly, the
Trust  may  not  achieve  the  anticipated  benefits  of  the  financial futures
contracts  and  may realize a loss. The use of futures transactions involves the
risk  of  imperfect  correlation in movements in the price of futures contracts,
interest  rates  and the underlying hedged assets. The Trust is also at the risk
of  not  being able to enter into a closing transaction for the futures contract
because  of an illiquid secondary market. In addition, since futures are used to
shorten  or  lengthen a portfolio's duration, there is a risk that the portfolio
may  have  temporarily  performed better without the hedge or that the Trust may
lose  the  opportunity  to  realize  appreciation  in  the  market  price of the
underlying positions.

SHORT  SALES: The  Trust  may  make  short  sales  of  securities as a method of
hedging  potential  price  declines  in similar securities owned. When the Trust
makes  a short sale, it may borrow the security sold short and deliver it to the
broker-dealer through


                                       14


<PAGE>

which  it  made  the  short sale as collateral for its obligation to deliver the
security  upon conclusion of the sale. The Trust may have to pay a fee to borrow
the  particular  securities  and  may  be  obligated  to  pay  over any payments
received  on such borrowed securities. A gain, limited to the price at which the
Trust  sold  the  security short, or a loss, unlimited as to dollar amount, will
be  recognized  upon  the  termination  of  a  short sale if the market price is
greater or less than the proceeds originally received.

SECURITIES  LENDING: The  Trust  may  lend its portfolio securities to qualified
institutions.  The loans are secured by collateral at least equal, at all times,
to  the  market  value  of the securities loaned. The Trust may bear the risk of
delay  in  recovery  of, or even loss of rights in, the securities loaned should
the   borrower   of   the   securities  fail  financially.  The  Trust  receives
compensation  for  lending  its  securities in the form of interest on the loan.
The  Trust  also continues to receive interest on the securities loaned, and any
gain  or loss in the market price of the securities loaned that may occur during
the term of the loan will be for the account of the Trust.

INTEREST  RATE  CAPS:   Interest  rate  caps are similar to interest rate swaps,
except  that  one  party  agrees  to  pay  a fee, while the other party pays the
excess, if any, of a floating rate over a specified fixed or floating rate.

     Interest  rate caps are intended to both manage the duration of the Trust's
portfolio  and its exposure to changes in short term rates. Owning interest rate
caps  reduces  the  portfolio's duration, making it less sensitive to changes in
interest  rates  from  a market value perspective. The effect on income involves
protection  from  rising short term rates, which the Trust experiences primarily
in the form of leverage.

     The  Trust is exposed to credit loss in the event of non-performance by the
other  party  to  the  interest rate cap. However, the Trust does not anticipate
non-performance by any counterparty.

     Transactions  fees  paid  or received by the Trust are recognized as assets
or  liabilities  and  amortized or accreted into interest expense or income over
the  life  of  the  interest  rate  cap.  The asset or liability is subsequently
adjusted  to  the  current  market  value  of the interest rate cap purchased or
sold.  Changes  in  the  value  of  the  interest  rate  cap  are  recognized as
unrealized gains and losses.

INTEREST  RATE  FLOORS: Interest rate floors are similar to interest rate swaps,
except  that  one  party  agrees  to  pay  a fee, while the other party pays the
excess, if any, of a floating rate under a specified fixed or floating rate.

     Interest  rate  floors are used by the Trust to both manage the duration of
the  portfolio and its exposure to changes in short-term interest rates. Selling
interest  rate floors reduces the portfolio's duration, making it less sensitive
to  changes  in  interest  rates  from  a  market value perspective. The Trust's
leverage  provides  extra  income  in  a period of falling rates. Selling floors
reduces  some  of  that  advantage  by  partially  monetizing  it as an up front
payment which the Trust receives.

     The  Trust is exposed to credit loss in the event of non-performance by the
other  party  to the interest rate floor. However, the Trust does not anticipate
non-performance by any counterparty.

     Transactions  fees  paid  or received by the Trust are recognized as assets
or  liabilities  and  amortized or accreted into interest expense or income over
the  life  of  the  interest  rate floor. The asset or liability is subsequently
adjusted  to  the  current  market value of the interest rate floor purchased or
sold.  Changes  in  the  value  of  the  interest  rate  floor are recognized as
unrealized gains and losses.

SECURITIES TRANSACTIONS AND NET INVESTMENT INCOME:
Securities  transactions are recorded on the trade date. Realized and unrealized
gains  and  losses  are calculated on the identified cost basis. Interest income
is  recorded  on the accrual basis and the Trust accretes discount and amortizes
premium  on  securities  purchased  using  the  interest  method.  Expenses  are
recorded  on the accrual basis which may require the use of certain estimates by
management.

TAXES: It  is  the Trust's intention to continue to meet the requirements of the
Internal  Revenue  Code  applicable  to  regulated  investment  companies and to
distribute  substantially  all of its taxable income to shareholders. Therefore,
no federal income tax provision is required.

DIVIDENDS   AND   DISTRIBUTIONS: The  Trust  declares  and  pays  dividends  and
distributions  monthly,  first  from  net  investment income, then from realized
short-term  capital gains and other sources, if necessary. Net long-term capital
gains,  if  any,  in  excess  of  loss  carryforwards  are  distributed at least
annually. Dividends and distributions are recorded on the ex-dividend date.

     Income  distributions  and  capital  gain  distributions  are determined in
accordance  with income tax regulations which may differ from generally accepted
accounting principles.

ESTIMATES: The  preparation of financial statements in conformity with generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that  affect  the  reported  amounts  of assets and liabilities and
disclosure  of  contingent  assets  and liabilities at the date of the financial
statements  and  the  reported  amounts  of  revenues  and  expenses  during the
reporting period. Actual results could differ from those estimates.


                                       15


<PAGE>

NOTE 2. AGREEMENTS                          The Trust has an Investment Advisory
                                            Agreement  with  BlackRock Financial
Management,  Inc.  (the  "Adviser"),  a wholly-  owned  corporate  subsidiary of
BlackRock Advisors, Inc., which is an indirect majority-owned  subsidiary of PNC
Bank,  N.A., and an  Administration  Agreement with Prudential  Investments Fund
Management LLC ("PIFM"), an indirect,  wholly-owned subsidiary of The Prudential
Insurance Co. of America.

     The  investment  fee  paid  to  the  Adviser is computed weekly and payable
monthly  at  an  annual  rate of 0.65% of the Trust's average weekly net assets.
The  administration fee paid to PIFM is also computed weekly and payable monthly
at  an  annual  rate  of  0.20% of the first $500 million of the Trust's average
weekly net assets and 0.15% of any excess.

     Pursuant  to the agreements, the Adviser provides continuous supervision of
the  investment  portfolio  and  pays the compensation of officers of the Trust.
PIFM  pays occupancy and certain clerical and accounting costs of the Trust. The
Trust bears all other costs and expenses.


NOTE  3. PORTFOLIO                 Purchases and sales of investment securities,
SECURITIES                         other  than short-term investments and dollar
                                   rolls, for  the  six  months  ended April 30,
1999 aggregated $429,962,950 and $379,966,742, respectively.

     The  Trust  may  invest  without  limit in securities which are not readily
marketable,  including  those  which  are  restricted  as  to  disposition under
securities  law  ("restricted  securities")  although  the Trust does not expect
that  such  investments  will  generally  exceed 25% of its portfolio assets. At
April  30,  1999,  the  Trust  held  2.1%  of  its  portfolio assets in illiquid
securities all of which were securities restricted as to resale.

     The  Trust  may  from time to time purchase in the secondary market certain
mortgage  pass-through  securities  packaged  or master serviced by PNC Mortgage
Securities  Corp.  (or Sears Mortgage if PNC Mortgage Securities Corp. succeeded
to  rights  and duties of Sears) or mortgage related securities containing loans
or  mortgages  originated  by PNC Bank or its affiliates, including Midland Loan
Services,  Inc.  It  is  possible  under  certain  circumstances,  PNC  Mortgage
Securities  Corp. or its affiliates, including Midland Loan Services, Inc. could
have  interests  that  are in conflict with the holders of these mortgage-backed
securities,  and  such holders could have rights against PNC Mortgage Securities
Corp. or its affiliates, including Midland Loan Services, Inc.

     The  federal  income tax basis of the Trust's investments at April 30, 1999
was  $674,917,601  and,  accordingly, net unrealized appreciation was $2,899,141
(gross   unrealized  appreciation  $35,608,599;  gross  unrealized  depreciation
$32,709,458).

     For  federal income tax purposes, the Trust has a capital loss carryforward
at  October  31,  1998  of  approximately  $69,599,900  of  which  approximately
$3,440,300  will  expire in 2001, approximately $23,358,100 will expire in 2002,
approximately  $15,428,300  will  expire  in  2003 and approximately $27,373,200
will  expire  in 2004. Accordingly, no capital gains distribution is expected to
be  paid  to  shareholders  until net gains have been realized in excess of such
amounts.

     Details  of  open  financial  futures  contracts  at  April 30, 1999 are as
follows:

<TABLE>
<CAPTION>
                                                  VALUE AT       VALUE AT       UNREALIZED
NUMBER OF                          EXPIRATION       TRADE        APRIL 30,     APPRECIATION
CONTRACTS               TYPE          DATE          DATE           1999       (DEPRECIATION)
- ----------------- --------------- ------------ -------------- -------------- ---------------
<S>               <C>             <C>          <C>            <C>            <C>
Long Positions:
   267            10 Yr. T-Note   June 1999    $30,771,858    $30,621,563      $  (150,295)
 4,079            30 Yr. T-Bond   June 1999    497,117,818    490,244,812       (6,873,006)
Short Positions:
    69            Eurodollar      June 2000     16,300,940     16,297,800            3,140
    69            Eurodollar      March 2000    16,323,365     16,319,363            4,002
                                                                               -----------
                                                                               $(7,016,159)
                                                                               ===========
</TABLE>

     The  Trust  entered  into four interest rate caps. Under all agreements the
Trust  receives  the  excess,  if any, of a floating rate over a fixed rate. The
Trust  paid  a  transaction fee for each agreement. Details of the caps at April
30, 1999 are as follows:


<TABLE>
<CAPTION>
 NOTIONAL                                                                     VALUE AT
  AMOUNT        FIXED        FLOATING       TERMINATION      AMORTIZED       APRIL 30,        UNREALIZED
   (000)        RATE           RATE             DATE            COST            1999         DEPRECIATION
- ----------   ----------   --------------   -------------   -------------   -------------   ---------------
<S>          <C>          <C>              <C>             <C>             <C>             <C>
$50,000        6,00%        3 mth. LIBOR       2/19/02       $  904,874      $  320,293      $  (584,581)
100,000        6.50%        3 mth. LIBOR        4/4/02        2,101,704         486,677       (1,615,027)
100,000        7.00%        3 mth. LIBOR       4/18/03        2,271,801         610,000       (1,661,801)
100,000        7.25%        3 mth. LIBOR       4/23/03        1,911,619         490,000       (1,421,619)
                                                             ----------      ----------      -----------
                                                             $7,189,998      $1,906,970      $(5,283,028)
                                                             ==========      ==========      ===========
</TABLE>

     Details of the open interest rate swap at April 30, 1999 are as follows:

<TABLE>
<CAPTION>
    NOTIONAL
     AMOUNT                             FIXED                        TERMINATION      UNREALIZED
      (000)              TYPE           RATE       FLOATING RATE         DATE        DEPRECIATION
- ----------------   ---------------   ----------   ---------------   -------------   -------------
<S>                <C>               <C>          <C>               <C>             <C>
$   (20,000)       Interest Rate     7.50%        1 mth LIBOR       04/25/02        $(670,800)
                                                                                    =========
</TABLE>

                                       16


<PAGE>

NOTE 4. BORROWINGS                  REVERSE  REPURCHASE  AGREEMENTS:  The  Trust
                                    enters  into  reverse repurchase  agreements
with  qualified,  third  party  broker-dealers  as  determined  by and under the
direction of the Trust's  Board of  Directors.  Interest on the value of reverse
repurchase  agreements  issued and outstanding is based upon competitive  market
rates at the time of  issuance.  At the time the  Trust  enters  into a  reverse
repurchase agreement, it establishes and maintains a segregated account with the
lender  containing liquid high grade securities having a value not less than the
repurchase  price,   including  accrued  interest,  of  the  reverse  repurchase
agreement.

     The  average  daily  balance  of  reverse repurchase agreements outstanding
during  the  six months ended April 30, 1999 was approximately $218,544,000 at a
weighted  average  interest  rate  of approximately 4.59%. The maximum amount of
reverse  repurchase  agreements  outstanding  at any month-end during the period
was $238,025,000 as of February 28, 1999, which was 29.88% of total assets.

DOLLAR  ROLLS:  The  Trust  enters  into  dollar  rolls in which the Trust sells
securities  for  delivery  in  the current month and simultaneously contracts to
repurchase  substantially similar (same type, coupon and maturity) securities on
a  specified future date. During the roll period the Trust forgoes principal and
interest  paid  on  the  securities.  The  Trust  is compensated by the interest
earned  on  the  cash  proceeds  of the initial sale and by the lower repurchase
price at the future date.

     The  average  monthly  balance  of  dollar rolls outstanding during the six
months  ended  April  30, 1999 was approximately $22,801,198. The maximum amount
of  dollar rolls outstanding at any month-end during the year was $60,312,500 as
of January 31, 1999, which was 8.07% of total assets.

NOTE  5. CAPITAL                        There are 200 million shares of $.01 par
                                        value common  stock  authorized.  Of the
62,849,878  shares  outstanding  at April 30,  1999,  the Adviser  owned  10,753
shares.

NOTE  6. DIVIDENDS                     Since   April  30,  1999,  the  Board  of
                                       Directors of the Trust declared dividends
from  undistributed  earnings  of  $0.046875  per share  payable May 28, 1999 to
shareholders of record on May 15, 1999.


                                       17


<PAGE>


- --------------------------------------------------------------------------------
                        THE BLACKROCK INCOME TRUST INC.
                           DIVIDEND REINVESTMENT PLAN
- --------------------------------------------------------------------------------

     Pursuant   to   the   Trust's  Dividend  Reinvestment  Plan  (the  "Plan"),
shareholders  may elect to have all distributions of dividends and capital gains
reinvested  by  State  Street Bank and Trust Company (the "Plan Agent") in Trust
shares  pursuant  to  the  Plan. Shareholders who do not participate in the Plan
will  receive  all  distributions in cash paid by check in United States dollars
mailed  directly  to  the  shareholders  of record (or if the shares are held in
street  or  other  nominee  name, then to the nominee) by the transfer agent, as
dividend disbursing agent.

     The  Plan  Agent  serves as agent for the shareholders in administering the
Plan.  After  the Trust declares a dividend or determines to make a capital gain
distribution,  the  Plan  Agent will, as agent for the participants, receive the
cash  payment  and use it to buy Trust shares in the open market on the New York
Stock  Exchange or elsewhere, for the participants' accounts. The Trust will not
issue any new shares in connection with the Plan.

     Participants  in the Plan may withdraw from the Plan upon written notice to
the  Plan  Agent and will receive certificates for whole Trust shares and a cash
payment will be made for any fraction of a Trust share.

     The  Plan  Agent's  fees  for the handling of the reinvestment of dividends
and  distributions will be paid by the Trust. However, each participant will pay
a  pro  rata  share  of  brokerage commissions incurred with respect to the Plan
Agent's  open  market purchases in connection with the reinvestment of dividends
and  distributions.  The  automatic  reinvestment of dividends and distributions
will  not  relieve participants of any federal, state or local income taxes that
may be payable on such dividends or distributions.

     The  Trust  reserves the right to amend or terminate the Plan as applied to
any  dividend  or  distribution  paid subsequent to written notice of the change
sent  to  all  shareholders of the Trust at least 90 days before the record date
for  the dividend or distribution. The Plan also may be amended or terminated by
the  Plan Agent upon at least 90 days' written notice to all shareholders of the
Trust.  All  correspondence  concerning  the Plan should be directed to the Plan
Agent at (800) 699-1BFM. The addresses are on the front of this report.


                                       18


<PAGE>


- --------------------------------------------------------------------------------
                        THE BLACKROCK INCOME TRUST INC.
                             ADDITIONAL INFORMATION
- --------------------------------------------------------------------------------

     YEAR  2000  READINESS  DISCLOSURE. The Trust is currently in the process of
evaluating  its  information technology infrastructure for Year 2000 compliance.
Substantially  all  of  the  Trust's  information  systems  are  supplied by the
Adviser.  The  Adviser  has  advised  the  Trust that it is currently evaluating
whether  such systems are year 2000 compliant and that it expects to incur costs
of   up  to  approximately  five  hundred  thousand  dollars  to  complete  such
evaluation  and  to make any modifications to its systems as may be necessary to
achieve  Year  2000  compliance.  The  Adviser has advised the Trust that it has
fully  tested its systems for Year 2000 compliance. The Trust may be required to
bear  a portion of such cost incurred by the Adviser in this regard. The Adviser
has  advised  the  Trust  that it does not anticipate any material disruption in
the  operations  of  the  Trust  as  a  result  of any failure by the Adviser to
achieve  Year 2000 compliance. There can be no assurance that the costs will not
exceed  the  amount  referred  to  above or that the Trust will not experience a
disruption in operations.

     The  Adviser  has advised the Trust that it is in the process of evaluating
the  Year 2000 compliance of various suppliers of the Adviser and the Trust. The
Adviser  has  advised  the Trust that it has communicated with such suppliers to
determine  their Year 2000 compliance status and the extent to which the Adviser
or  the  Trust  could be affected by any supplier's Year 2000 compliance issues.
To  date,  the  Adviser  has  received  responses  from  all such suppliers with
respect  to  their  Year 2000 compliance, and there can be no assurance that the
systems  of  such  suppliers,  who  are beyond the Trust's control, will be Year
2000  compliant.  In  the event that any of the Trust's significant suppliers do
not  successfully  and timely achieve Year 2000 compliance, the Trust's business
or  operations  could  be  adversely affected. The Adviser has advised the Trust
that  it  is  in  the  process  of  preparing  a  contingency plan for Year 2000
compliance  by  its  suppliers.  There can be no assurance that such contingency
plan will be successful in preventing a disruption of the Trust's operations.

     The  Trust  is  designating  this  disclosure  as  its  Year 2000 readiness
disclosure  for  all  purposes  under  the  Year  2000 Information and Readiness
Disclosure  Act  and  the  foregoing  information  shall  constitute a Year 2000
statement for purposes of that Act.

     ANNUAL  MEETING  OF TRUST SHAREHOLDERS. There have been no material changes
in  the Trust's investment objectives or policies that have not been approved by
the  shareholders  or to its charter or by-laws or in the principal risk factors
associated  with  investment  in  the  Trust.  There have been no changes in the
persons  who  are  primarily  responsible  for  the day-to-day management of the
Trust's Portfolio.

     The  Annual  Meeting of Trust Shareholders was held May 19, 1999 to vote on
the following matters:

     (1) To elect three Directors as follows:


         DIRECTOR                                  CLASS      TERM     EXPIRING
         --------                                 -------     ----     --------
         Richard E. Cavanagh ...................    I       3 years      2002
         James Grosfeld ........................    I       3 years      2002
         James Clayburn La Force, Jr. ..........    I       3 years      2002

         Directors whose term of office continues beyond this meeting are Andrew
         F. Brimmer,  Kent Dixon, Frank J. Fabozzi,  Laurence D. Fink, Walter F.
         Mondale and Ralph L. Schlosstein.

     (2) To ratify the  selection of Deloitte & Touche LLP as independent public
         accountants of the Trust for the fiscal year ending October 31, 1999.

         Shareholders  elected the three Directors and ratified the selection of
         Deloitte & Touche LLP. The results of the voting was as follows:

<TABLE>
<CAPTION>
                                                              VOTES FOR     VOTES AGAINST     ABSTENTIONS
                                                            ------------   ---------------   ------------
<S>                                                         <C>               <C>             <C>
         Richard E. Cavanagh ............................   45,998,475           0            1,107,915
         James Grosfeld .................................   45,974,602           0            1,131,788
         James Clayburn La Force, Jr. ...................   45,975,482           0            1,130,908
         Ratification of Deloitte & Touche LLP ..........   46,060,388        585,068           460,934
</TABLE>

                                       19


<PAGE>


- --------------------------------------------------------------------------------
                        THE BLACKROCK INCOME TRUST INC.
                               INVESTMENT SUMMARY
- --------------------------------------------------------------------------------

THE TRUST'S INVESTMENT OBJECTIVE

The  BlackRock  Income  Trust's investment objective is to manage a portfolio of
high   quality  securities  to  achieve  high  monthly  income  consistent  with
preservation  of  capital. The Trust will seek to distribute monthly income that
is  greater  than that obtainable on an annualized basis by investment in United
States  Treasury  securities  having  the  same  maturity  as the average dollar
weighted maturity of the Trust's investments.

WHO MANAGES THE TRUST?

BlackRock   Financial   Management,  Inc.  ("BlackRock")  is  an  SEC-registered
investment  adviser.  BlackRock  and  its  affiliates currently manage over $141
billion  on  behalf  of  taxable  and  tax-exempt  clients worldwide. Strategies
include  fixed  income,  equity  and  cash and may incorporate both domestic and
international   securities.   Domestic   fixed  income  strategies  utilize  the
government,  mortgage,  corporate  and municipal bond sectors. BlackRock manages
twenty-one  closed-end  funds that are traded on either the New York or American
stock  exchanges,  and  a  $25 billion family of open-end equity and bond funds.
Current accounts number over 450, domiciled in the United States and overseas.

WHAT CAN THE TRUST INVEST IN?

The  Trust will invest at least 65% of its assets in mortgage-backed securities.
At  least  85%  of the Trust's assets must be rated at least "AAA" by Standard &
Poor's  or "Aaa" by Moody's at the time of purchase; of this 85% at least 80% of
the  Trust's  assets  must  be  rated at least "AAA" by Standard & Poor's at the
time  of  purchase while the remaining 5% can be invested in securities rated at
least  "AAA"  by  Standard  &  Poor's,  "Aaa"  by Moody's or deemed "AAA" by the
Advisor  at the time of purchase. Additionally, 15% of the Trust's assets can be
invested  in  securities  rated  at  least  "AA" by Standard & Poor's or "Aa" by
Moody's  at time of purchase. Under current market conditions, BlackRock expects
that  the  primary  investments of the Trust will be U.S. government securities,
securities  backed  by government agencies (such as mortgage-backed securities),
privately   issued   mortgage-backed   securities,   commercial  mortgage-backed
securities and asset-backed securities.

WHAT IS THE ADVISER'S INVESTMENT STRATEGY?

The  Adviser  will seek to meet the Trust's investment objective by managing the
assets  of  the  Trust  so as to provide high monthly income consistent with the
preservation  of  capital, The Trust will seek to provide monthly income that is
greater  than  that  which  could  be  obtained  by  investing  in U.S. Treasury
securities  with  an  average  life similar to that of the Trust's assets. Under
current  market  conditions,  the average life of the Trust's assets is expected
to  be  in  the  range of seven to ten years. Under other market conditions, the
Trust's  average  life may vary and may not be predictable using any formula. In
seeking  the investment objective, the Adviser may actively manage among various
types of securities in different interest rate environments.

Traditional   mortgage  pass-through  securities  make  interest  and  principal
payments  on  a monthly basis and can be a source of attractive levels of income
to  the  Trust. While mortgage-backed securities in the Trust are of high credit
quality,  they  typically  offer  a  yield  spread  above  Treasuries due to the
uncertainty  of the timing of their cash flows as they are subject to changes in
the  rate  of  prepayments  when  interest  rates  change and either a larger or
smaller  proportion of mortgage holders refinance their mortgages or move. While
mortgage-backed  securities  offer  the  opportunity for attractive yields, they
subject  a  portfolio to interest rate risk and prepayment exposure which result
in reinvestment risk when prepaid principal must be reinvested.

Multiple-class  mortgage  pass-through  securities,  or  collateralized mortgage
obligations  (CMOs),  are  also  an  investment  that may be used in the Trust's
portfolio.  These  securities are issued in multiple classes each of which has a
different  coupon  rate,  stated  maturity  and  prioritization on the timing of
receipt  of  cash  flows  coming  from  interest  and  principal payments on the
underlying   mortgages.   Principal  prepayments  can  be  allocated  among  the
different  classes  of  a  CMO  in  a  number of ways; for instance, they can be
applied  to  each  of  the  classes  in  the  order  of  their respective stated
maturities.  This  feature allows an investor to better plan the average life of
their  investment.  As  a  result,  these securities may be used by the Trust to
help  manage  prepayment risk and align the assets of the portfolio more closely
with its targeted average life.

Additionally,  in  order  to attempt to protect the portfolio from interest rate
risk,  the  Adviser will attempt to locate securities with call protection, such
as  commercial mortgage-backed securities with prepayment penalties or lockouts.
Securities  with  call  protection should provide the portfolio with some degree
of  protection  against  reinvestment  risk  during  times  of  lower prevailing
interest rates.


                                       20


<PAGE>


HOW  ARE  THE  TRUST'S  SHARES  PURCHASED AND SOLD? DOES THE TRUST PAY DIVIDENDS
REGULARLY?

The  Trust's  shares  are  traded  on the New York Stock Exchange which provides
investors  with  liquidity on a daily basis. Orders to buy or sell shares of the
Trust  must  be  placed  through  a  registered broker or financial advisor. The
Trust  pays  monthly dividends which are typically paid on the last business day
of  the  month.  For  shares  held  in  the  shareholders name, dividends may be
reinvested  in additional shares of the fund through the Trust's transfer agent,
State  Street  Bank  &  Trust  Company.  Investors  who wish to hold shares in a
brokerage  account  should  check  with  their  financial  advisor  to determine
whether their brokerage firm offers dividend reinvestment services.

LEVERAGE CONSIDERATIONS IN THE TRUST

Under  current  market  conditions,  leverage increases the income earned by the
Trust.  The  Trust  employs  leverage  primarily  through  the  use  of  reverse
repurchase  agreements  and  dollar  rolls. Leverage permits the Trust to borrow
money  at  short-term  rates and reinvest that money in longer-term assets which
typically  offer  higher  interest rates. The difference between the cost of the
borrowed  funds  and  the  income  earned  on  the proceeds that are invested in
longer  term  assets  is the benefit to the Trust from leverage. In general, the
portfolio is typically leveraged at approximately 331|M/3% of total assets.

Leverage  also increases the duration (or price volatility of the net assets) of
the  Trust,  which  can improve the performance of the Trust in a declining rate
environment,  but  can  cause  net assets to decline faster than the market in a
rapidly  rising  rate  environment,  BlackRock's portfolio managers continuously
monitor  and  regularly  review  the  Trust's  use of leverage and the Trust may
reduce,  or  unwind,  the  amount of leverage employed should BlackRock consider
that reduction to be in the best interests of shareholders.

SPECIAL CONSIDERATIONS AND RISK FACTORS RELEVANT TO THE TRUST

THE  TRUST  IS  INTENDED  TO  BE  A LONG-TERM INVESTMENT AND IS NOT A SHORT-TERM
TRADING VEHICLE.

INVESTMENT  OBJECTIVE. Although  the  objective  of the Trust is to provide high
monthly  income  consistent  with  preservation  of  capital,  there  can  be no
assurance that this objective will be achieved.

DIVIDEND  CONSIDERATIONS. Dividends  paid  by  the Trust are likely to vary over
time  as  fixed  income market conditions change. Future dividends may be higher
or lower than the dividend the Trust is currently paying.

INTEREST-ONLY  SECURITIES  (IO). The  yield  to  maturity  on  an  IO  class  is
extremely  sensitive  to  the rate of principal payments (including prepayments)
on  the  related  underlying  Mortgage  Assets,  and  a  rapid rate of principal
payments  may  have  a  material  adverse  effect  on  such  security's yield to
maturity.  If the underlying Mortgage Assets experience greater than anticipated
prepayments  of  principal,  the  Trust  may  fail  to  recoup fully its initial
investment  in  these  securities even if the securities are rated AAA by S&P or
Aaa by Moody's.

LEVERAGE. The  Trust utilizes leverage through reverse repurchase agreements and
dollar  rolls,  which  involves  special  risks. The Trust's net asset value and
market value may be more volatile due to its use of leverage.

MARKET  PRICE  OF  SHARES. The shares of closed-end investment companies such as
the  Trust  trade  on the New York Stock Exchange (NYSE symbol: BKT) and as such
are  subject to supply and demand influences. As a result, shares may trade at a
discount or a premium to their net asset value.

MORTGAGE-BACKED   AND   ASSET-BACKED   SECURITIES. The   cash   flow  and  yield
characteristics  of  these  securities  differ from traditional debt securities.
The   major  differences  typically  include  more  frequent  payments  and  the
possibility  of  prepayments  which  will  change  the  yield to maturity of the
security.

CORPORATE  DEBT  SECURITIES. The  value  of  corporate debt securities generally
varies  inversely  with  changes  in prevailing market interest rates. The Trust
may  be  subject  to  certain  reinvestment  risks  in environments of declining
interest rates.

ZERO   COUPON  SECURITIES. Such  securities  receive  no  cash  flows  prior  to
maturity,  therefore  interim  price movements on these securities are generally
more  sensitive  to  interest  rate movements than securities that make periodic
coupon  payments. These securities appreciate in value over time and can play an
important role in helping the Trust achieve its primary objective.

ILLIQUID  SECURITIES. The  Trust  may  invest  in  securities that are illiquid,
although  under  current  market conditions the Trust expects to do so to only a
limited extent. These securities involve special risks.

ANTITAKEOVER  PROVISIONS. Certain  antitakeover provisions will make a change in
the  Trust's  business  or management more difficult without the approval of the
Trust's  Board of Directors and may have the effect of depriving shareholders of
an  opportunity  to  sell  their shares at a premium above the prevailing market
price.


                                       21


<PAGE>


- --------------------------------------------------------------------------------
                        THE BLACKROCK INCOME TRUST INC.
                                    GLOSSARY
- --------------------------------------------------------------------------------

ADJUSTABLE RATE MORTGAGE-BACKED     Mortgage  instruments  with  interest  rates
SECURITIES (ARMS):                  that adjust at periodic intervals at a fixed
                                    amount  over the market  levels of  interest
                                    rates as  reflected  in  specified  indexes.
                                    ARMS are backed by mortgage loans secured by
                                    real property.

ASSET-BACKED SECURITIES:            Securities   backed  by  various   types  of
                                    receivables  such as  automobile  and credit
                                    card receivables.

CLOSED-END FUND:                    Investment  vehicle which initially offers a
                                    fixed number of shares and trades on a stock
                                    exchange. The fund invests in a portfolio of
                                    securities  in  accordance  with its  stated
                                    investment objectives and policies.

COMMERCIAL MORTGAGE                 Mortgage-backed securities secured or backed
BACKED SECURITIES (CMBS):           by mortgage loans on commercial properties.

COLLATERALIZED                      Mortgage-backed  securities  which  separate
MORTGAGE OBLIGATIONS (CMOS):        mortgage  pools into  short-,  medium-,  and
                                    long-term    securities    with    different
                                    priorities  for  receipt  of  principal  and
                                    interest.  Each  class  is paid a  fixed  or
                                    floating   rate  of   interest   at  regular
                                    intervals.   Also  known  as  multiple-class
                                    mortgage pass-throughs.

DISCOUNT:                           When a fund's  net  asset  value is  greater
                                    than its stock  price the fund is said to be
                                    trading at a discount.

DIVIDEND:                           This is income  generated by securities in a
                                    portfolio and  distributed  to  shareholders
                                    after the deduction of expenses.  This Trust
                                    declares  and pays  dividends  on a  monthly
                                    basis.

DIVIDEND REINVESTMENT:              Shareholders   may   elect   to   have   all
                                    distributions of dividends and capital gains
                                    automatically   reinvested  into  additional
                                    shares of the Trust.

FHA:                                Federal Housing Administration, a government
                                    agency that facilitates a secondary mortgage
                                    market   by   providing   an   agency   that
                                    guarantees  timely  payment of interest  and
                                    principal on mortgages.

FHLMC:                              Federal Home Loan  Mortgage  Corporation,  a
                                    publicly    owned,    federally    chartered
                                    corporation  that  facilitates  a  secondary
                                    mortgage market by purchasing mortgages from
                                    lenders  such as  savings  institutions  and
                                    reselling  them to  investors  by  means  of
                                    mortgage-backed  securities.  Obligations of
                                    FHLMC  are  not   guaranteed   by  the  U.S.
                                    government,  however,  they  are  backed  by
                                    FHLMC's  authority  to borrow  from the U.S.
                                    government. Also known as Freddie Mac.

FNMA:                               Federal  National  Mortgage  Association,  a
                                    publicly    owned,    federally    chartered
                                    corporation  that  facilitates  a  secondary
                                    mortgage market by purchasing mortgages from
                                    lenders  such as  savings  institutions  and
                                    reselling  them to  investors  by  means  of
                                    mortgage-backed  securities.  Obligations of
                                    FNMA   are  not   guaranteed   by  the  U.S.
                                    government,  however,  they  are  backed  by
                                    FNMA's  authority  to  borrow  from the U.S.
                                    government. Also known as Fannie Mae.

GNMA:                               Government National Mortgage Association,  a
                                    government   agency   that   facilitates   a
                                    secondary  mortgage  market by  providing an
                                    agency  that  guarantees  timely  payment of
                                    interest and principal on mortgages.  GNMA's
                                    obligations  are supported by the full faith
                                    and credit of the U.S. Treasury.  Also known
                                    as Ginnie Mae.


                                       22


<PAGE>


<TABLE>
<S>                                 <C>
GOVERNMENT SECURITIES:              Securities  issued or guaranteed by the U.S.
                                    government,   or  one  of  its  agencies  or
                                    instrumentalities,  such as GNMA (Government
                                    National   Mortgage    Association),    FNMA
                                    (Federal National Mortgage  Association) and
                                    FHLMC    (Federal    Home   Loan    Mortgage
                                    Corporation).

INTEREST-ONLY SECURITIES:           Mortgage  securities   including  CMBS  that
                                    receive only the interest cash flows from an
                                    underlying   pool  of   mortgage   loans  or
                                    underlying  pass-through  securities.   Also
                                    known as a STRIP.

INVERSE-FLOATING RATE MORTGAGES:    Mortgage   instruments   with  coupons  that
                                    adjust at periodic intervals  according to a
                                    formula which sets  inversely  with a market
                                    level interest rate index.

MARKET PRICE:                       Price per share of a security trading in the
                                    secondary  market.  For a  closed-end  fund,
                                    this is the  price at which one share of the
                                    fund  trades on the stock  exchange.  If you
                                    were to buy or sell shares, you would pay or
                                    receive the market price.

MORTGAGE DOLLAR ROLLS:              A mortgage  dollar roll is a transaction  in
                                    which   the  Trust   sells   mortgage-backed
                                    securities for delivery in the current month
                                    and  simultaneously  contracts to repurchase
                                    substantially   similar  (although  not  the
                                    same) securities on a specified future date.
                                    During the "roll" period, the Trust does not
                                    receive  principal and interest  payments on
                                    the  securities,   but  is  compensated  for
                                    giving up these  payments by the  difference
                                    in the  current  sales  price (for which the
                                    security  is sold) and lower  price that the
                                    Trust pays for the  similar  security at the
                                    end date as well as the  interest  earned on
                                    the cash proceeds of the initial sale.

MORTGAGE PASS-THROUGHS:             Mortgage-backed  securities issued by Fannie
                                    Mae, Freddie Mac or Ginnie Mae.

MULTIPLE-CLASS PASS-THROUGHS:       Collateralized Mortgage Obligations.

NET ASSET VALUE (NAV):              Net asset value is the total market value of
                                    all  securities  held  by  the  Trust,  plus
                                    income accrued on its investments, minus any
                                    liabilities   including   accrued  expenses,
                                    divided by the total  number of  outstanding
                                    shares.  It is  the  underlying  value  of a
                                    single share on a given day. Net asset value
                                    for  the  Trust  is  calculated  weekly  and
                                    published in BARRON'S on  Saturday,  THE NEW
                                    YORK  TIMES and THE WALL  STREET  JOURNAL on
                                    Monday.

PRINCIPAL-ONLY SECURITIES:          Mortgage  securities  that  receive only the
                                    principal cash flows from an underlying pool
                                    of mortgage loans or underlying pass-through
                                    securities. Also known as a STRIP.

PROJECT LOANS:                      Mortgages for multi-family, low- to  middle-
                                    income housing.

PREMIUM:                            When a fund's  stock  price is greater  than
                                    its net asset value,  the fund is said to be
                                    trading at a premium.

REMIC:                              A real estate mortgage investment conduit is
                                    a   multiple-class    security   backed   by
                                    mortgage-backed securities or whole mortgage
                                    loans and  formed  as a trust,  corporation,
                                    partnership,  or  segregated  pool of assets
                                    that  elects  to be  treated  as a REMIC for
                                    federal tax purposes.  Generally, Fannie Mae
                                    REMICs  are  formed as trusts and are backed
                                    by mortgage-backed securities.

RESIDUALS:                          Securities   issued   in   connection   with
                                    collateralized   mortgage  obligations  that
                                    generally  represent  the  excess  cash flow
                                    from the mortgage assets  underlying the CMO
                                    after  payment of principal  and interest on
                                    the  other  CMO   securities   and   related
                                    administrative expenses.

REVERSE REPURCHASE                  In a reverse repurchase agreement, the Trust
AGREEMENTS:                         sells  securities  and agrees to  repurchase
                                    them at a  mutually  agreed  date and price.
                                    During  this time,  the Trust  continues  to
                                    receive the principal and interest  payments
                                    from that security.  At the end of the term,
                                    the Trust receives the same  securities that
                                    were sold for the same initial dollar amount
                                    plus  interest  on the cash  proceeds of the
                                    initial sale.

STRIPPED MORTGAGE BACKED            Arrangements  in which a pool of  assets  is
SECURITIES:                         separated  into  two  classes  that  receive
                                    different  proportions  of the  interest and
                                    principal   distribution   from   underlying
                                    mortgage-backed  securities.  IO's  and PO's
                                    are examples of STRIPs.
</TABLE>

                                       23


<PAGE>

- --------------
  BlackRock
- ---------------

DIRECTORS
Laurence D. Fink, CHAIRMAN
Andrew F. Brimmer
Richard E. Cavanagh
Kent Dixon
Frank J. Fabozzi
James Grosfeld
James Clayburn La Force, Jr.
Walter F. Mondale
Ralph L. Schlosstein


OFFICERS
Ralph L. Schlosstein, PRESIDENT
Scott Amero, VICE PRESIDENT
Keith T. Anderson, VICE PRESIDENT
Michael C. Huebsch, VICE PRESIDENT
Robert S. Kapito, VICE PRESIDENT
Richard M. Shea, VICE PRESIDENT/TAX
Henry Gabbay, TREASURER
James Kong, ASSISTANT TREASURER
Karen H. Sabath, SECRETARY


INVESTMENT ADVISER
BlackRock Financial Management, Inc.
345 Park Avenue
New York, NY 10154
(800) 227-7BFM


ADMINISTRATOR
Prudential Investments Fund Management LLC
Gateway Center Three
100 Mulberry Street
Newark, NJ 07102-4077


CUSTODIAN AND TRANSFER AGENT
State Street Bank and Trust Company
One Heritage Drive
North Quincy, MA 02171
(800) 699-1BFM


INDEPENDENT AUDITORS
Deloitte & Touche LLP
Two World Financial Center
New York, NY 10281-1434


LEGAL COUNSEL
Skadden, Arps, Slate, Meagher & Flom LLP
919 Third Avenue
New York, NY 10022


             The accompanying financial statements as of April 30, 1999 were not
audited and accordingly, no opinion is expressed on them.


             This  report  is  for  shareholder  information.   This  is  not  a
prospectus intended for use in the purchase or sale of any securities.


                        THE BLACKROCK INCOME TRUST INC.
                c/o Prudential Investments Fund Management LLC
                              Gateway Center Three
                              100 Mulberry Street
                             Newark, NJ 07102-4077
                                 (800) 227-7BF


[GRAPHIC OMITTED] Printed on recycled paper                          09247F-10-0



      ----------------
         BlackRock
THE   ----------------
INCOME
TRUST INC.
===================================
SEMI-ANNUAL REPORT
APRIL 30, 1999



                               [GRAPHIC OMITTED]




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