UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F
FORM 13F COVER PAGE
Report for the Calendar Year or Quarter Ended: September 30, 1999
Check here if Amendment [ ]; Amendment Number:
This Amendment (Check only one.): [ ] is a restatement.
[ ] adds new holdings entries.
Institutional Investment Manager Filing this Report:
Name: Avenir Corporation
Address: 1725 K Street, N.W.
Suite 401
Washington, D.C. 20006
13F File Number: 28-6032
The institutional investment manager filing this report and the
person by whom it is signed hereby represent that the person
signing the report is authorized to submit it, that all
information contained herein is true, correct and complete, and
that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of
this form.
Person Signing this Report on Behalf of Reporting Manager:
Name: Charles G. Mackall, Jr.
Title: President
Phone: 202-659-4427
Signature, Place, and Date of Signing
Charles G. Mackall, Jr. Washington, D.C. October 12, 1999
Report Type (Check only one.):
[ x] 13F HOLDINGS REPORT.
[ ] 13F NOTICE.
[ ] 13F COMBINATION REPORT.
List of Other Managers Reporting for this Manager:
I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE
ACT OF 1934.
<PAGE>
FORM 13F SUMMARY PAGE
Report Summary:
Number of Other Included Managers: 0
Form 13F Information Table Entry Total: 113
Form 13F Information Table Value Total: $265,926,000
List of Other Included Managers:
<PAGE>
<TABLE> <C> <C>
FORM 13F INFORMATION TABLE
VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE
AEGON NV ORD AMER REG 7924103 375 4332SH SOLE 0 4332 0 0
AES Corp. COM 00130H105 826 14000SH SOLE 0 14000 0 0
Affiliated Computer Svcs Inc. CL A 008190100 4058 99891SH SOLE 0 99891 0 0
Airlease Ltd. L.P. DEPOSITORY UNIT 009366105 268 22900SH SOLE 0 22900 0 0
Alleghany Corporation COM 017175100 16350 92375SH SOLE 0 92375 0 0
Am. Mgt. Systems COM 027352103 244 9500SH SOLE 0 9500 0 0
American Express COM 025816109 540 4000SH SOLE 0 4000 0 0
American Online COM 02364J104 1103 10600SH SOLE 0 10600 0 0
American Tower Sys CL A 029912201 5534 282010SH SOLE 0 282010 0 0
Ameritech COM 030954101 641 9600SH SOLE 0 9600 0 0
AMFM, Inc. COM 1693100 3580 58922SH SOLE 0 58922 0 0
Auto. Data Proc. COM 053015103 201 4500SH SOLE 0 4500 0 0
Aztec Tech Ptnrs Inc COM 05480L101 182 106004SH SOLE 0 106004 0 0
BankAmerica Corp. COM 066050105 447 8019SH SOLE 0 8019 0 0
Bell Atlantic COM 077853109 332 4932SH SOLE 0 4932 0 0
BellSouth Corp. COM 079860102 333 7400SH SOLE 0 7400 0 0
Berkshire Hathaway CL A 084670108 7095 129SH SOLE 0 129 0 0
Berkshire Hathaway B CL B 084670207 1175 633SH SOLE 0 633 0 0
Bristol-Myers Squibb COM 110122108 209 3100SH SOLE 0 3100 0 0
Brookdale Living Communities, COM 112462106 3577 248809SH SOLE 0 248809 0 0
Cablevision Sys Corp CL A 12686C109 582 8000SH SOLE 0 8000 0 0
CBS Corp. COM 12490K107 299 6474SH SOLE 0 6474 0 0
CFW Communications COM 124923103 10854 454608SH SOLE 0 454608 0 0
Chesapeake Energy Corporation COM 165167107 39 10000SH SOLE 0 10000 0 0
Chicago Title Company COM 168228104 2579 64565SH SOLE 0 64565 0 0
Cisco Systems Inc. COM 17275R102 780 11380SH SOLE 0 11380 0 0
CNA Surety COM 12612L108 10873 828400SH SOLE 0 828400 0 0
Comcast Corp. - Sp. CL A 200300200 2700 67700SH SOLE 0 67700 0 0
Commerce Group. Inc. COM 200641108 784 34100SH SOLE 0 34100 0 0
Cymer, Inc. COM 232572107 243 7000SH SOLE 0 7000 0 0
Doubleclick, Inc COM 258609304 238 2000SH SOLE 0 2000 0 0
Dover Downs Entertainment COM 260086103 379 27300SH SOLE 0 27300 0 0
du Pont(EI) Co. COM 263534109 563 9304SH SOLE 0 9304 0 0
E W Scripps Co. - A CL A 811054204 1047 21317SH SOLE 0 21317 0 0
eFax.com COM 282012103 92 12000SH SOLE 0 12000 0 0
Emmis Communications Corp CL A 291525103 4454 67418SH SOLE 0 67418 0 0
Esco Electronics COM TR RCPT 269030201 5568 500500SH SOLE 0 500500 0 0
Evergreen Resources COM 299900308 1824 75800SH SOLE 0 75800 0 0
Exxon Corp. COM 302290101 863 11351SH SOLE 0 11351 0 0
Fedders Corp. A Nvtg CL A 313135303 1934 391766SH SOLE 0 391766 0 0
First Union Corp. COM 337358105 249 7000SH SOLE 0 7000 0 0
First Union Reit SH BEN INT 337400105 2697 539474SH SOLE 0 539474 0 0
Freddie Mac COM 313400301 738 14200SH SOLE 0 14200 0 0
General Electric COM 369604103 976 8232SH SOLE 0 8232 0 0
GTE Corp. COM 362320103 552 7174SH SOLE 0 7174 0 0
Hearst-Argyle Television, Inc.COM 422317107 3481 161907SH SOLE 0 161907 0 0
Hewlett Packard Co. COM 428236103 254 2800SH SOLE 0 2800 0 0
Houghton Mifflin Company COM 441560109 707 17400SH SOLE 0 17400 0 0
IndyMac Mortgage Holdings, IncCOM 44977L100 287 19100SH SOLE 0 19100 0 0
Int. Speedway Corp. CL B 460335300 4974 94969SH SOLE 0 94969 0 0
INTEL Corp. COM 458140100 1153 15520SH SOLE 0 15520 0 0
IPC Holdings, Ltd. ORD G4933P101 628 33500SH SOLE 0 33500 0 0
John Nuveen Co. CL A 478035108 5187 138554SH SOLE 0 138554 0 0
Johnson & Johnson COM 478160104 689 7500SH SOLE 0 7500 0 0
Journal Register Company COM 481138105 5853 425696SH SOLE 0 425696 0 0
Kaiser Ventures COM 483100103 4320 333900SH SOLE 0 333900 0 0
Koninklijke Philips ElectronicSPONSORED ADR 500472105 9645 95498SH SOLE 0 95498 0 0
Leucadia National COM 527288104 376 17900SH SOLE 0 17900 0 0
Lucent Technologies COM 549463107 318 4902SH SOLE 0 4902 0 0
Markel Corporation COM 570535104 16961 93161SH SOLE 0 93161 0 0
McDonald's Corp. COM 580135101 242 5600SH SOLE 0 5600 0 0
MediaOne Group Inc. COM 58440J104 464 6790SH SOLE 0 6790 0 0
Mellon Bank COM 585509102 2008 59708SH SOLE 0 59708 0 0
Merck & Co. COM 589331107 627 9680SH SOLE 0 9680 0 0
MGI Pharma, Inc COM 552880106 11834 910280SH SOLE 0 910280 0 0
Micron Technology, Inc. COM 595112103 266 4000SH SOLE 0 4000 0 0
Micros Systems COM 594901100 20205 498898SH SOLE 0 498898 0 0
Microsoft Corp. COM 594918104 290 3198SH SOLE 0 3198 0 0
MidAmerican Energy COM 129466108 9290 314930SH SOLE 0 314930 0 0
Murray Un. Dev. Corp COM 627189103 0 32500SH SOLE 0 32500 0 0
National Wireless Hlds. COM 638560102 4401 300900SH SOLE 0 300900 0 0
Nvest Companies, LP UNIT LTD PARTN 644095101 515 24500SH SOLE 0 24500 0 0
Penn Virginia COM 707882106 6105 294216SH SOLE 0 294216 0 0
Penn-America Group Inc. COM 707247102 7036 833942SH SOLE 0 833942 0 0
Pepsi of P.R.Botl. CL B 713434108 587 97900SH SOLE 0 97900 0 0
PepsiCo Inc. COM 713448108 214 7000SH SOLE 0 7000 0 0
Pfizer, Inc. COM 717081103 240 6684SH SOLE 0 6684 0 0
Pico Holding COM NEW 693366205 3031 141404SH SOLE 0 141404 0 0
Pico Products COM 719884108 1 11000SH SOLE 0 11000 0 0
PIMCO Adv Hldg LP UT LTD PART INT 69338P102 2395 76042SH SOLE 0 76042 0 0
Potomac Electric Pwr COM 737679100 1399 55000SH SOLE 0 55000 0 0
Precision Auto Care Inc. COM 74018R105 1244 652841SH SOLE 0 652841 0 0
Prime Retail, Inc. COM 741570105 200 27151SH SOLE 0 27151 0 0
Puget Sound Energy COM 745332106 218 9728SH SOLE 0 9728 0 0
Pulitzer Publishing COM 745771105 11099 244270SH SOLE 0 244270 0 0
Reliant Energy, Inc COM 75952J108 327 12100SH SOLE 0 12100 0 0
Reptron Electronics COM 76026W109 2372 558165SH SOLE 0 558165 0 0
Rohn Industries COM 775381106 328 163900SH SOLE 0 163900 0 0
Safeguard Sci. COM 786449108 537 7900SH SOLE 0 7900 0 0
Saul Centers COM 804395101 1944 123452SH SOLE 0 123452 0 0
ServiceMaster Corp. COM 81760N109 745 46387SH SOLE 0 46387 0 0
SFX Entertainment CL A 784178105 2227 72703SH SOLE 0 72703 0 0
Somanetics Corporation COM NEW 834445405 70 31900SH SOLE 0 31900 0 0
Sonex Research, Inc. COM 835448101 12 35478SH SOLE 0 35478 0 0
Southtrust Corp. COM 844730101 537 14966SH SOLE 0 14966 0 0
Suntrust Banks COM 867914103 658 10000SH SOLE 0 10000 0 0
Synalloy Corp. COM 871565107 636 92561SH SOLE 0 92561 0 0
Teleflex Inc. COM 879369106 252 6400SH SOLE 0 6400 0 0
Tellabs, Inc. COM 879664100 261 4576SH SOLE 0 4576 0 0
Teppco Partners UT LTD PARTNER 872384102 556 27800SH SOLE 0 27800 0 0
Time-Warner Inc. COM 887315109 304 5000SH SOLE 0 5000 0 0
Todhunter Int'l. COM 889050100 162 17800SH SOLE 0 17800 0 0
TV Guide Inc A CL A 87307Q109 391 10000SH SOLE 0 10000 0 0
U S West Inc. COM 91273H101 503 8811SH SOLE 0 8811 0 0
United Payors & United ProvideCOM 911319101 1325 75200SH SOLE 0 75200 0 0
United Television COM 913066106 350 3100SH SOLE 0 3100 0 0
Vermont Teddy Bear COM 92427X109 146 36000SH SOLE 0 36000 0 0
Viacom Inc. Cl A CL A 925524100 260 6000SH SOLE 0 6000 0 0
Vodafone ADR Sponsored ADR 92857T107 571 2400SH SOLE 0 2400 0 0
Washington Gas Light COM 938837101 418 15406SH SOLE 0 15406 0 0
Wells Fargo Co. COM 949740104 11204 282743SH SOLE 0 282743 0 0
Wesco Financial Corp COM 950817106 894 3300SH SOLE 0 3300 0 0
WorldCom, Inc COM 98155K102 216 3000SH SOLE 0 3000 0 0
</TABLE>
