EARTH SCIENCES INC
S-3, 1998-02-12
MINERAL ROYALTY TRADERS
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As filed with the Securities and Exchange Commission on February 12, 1998.
                                               Registration No.  ___-_____
===========================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                        
                                    FORM S-3
                                        
             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                                        
                              Earth Sciences, Inc.
              (Exact name of registrant as specified in its charter)
                                        
               Colorado                                84-0503749
       (State of incorporation)                   (IRS Employer Identification
                                      No.)
                                        
                 910 12th Street, Golden, Colorado        80401
           (Address of principal executive offices, including Zip Code)
                                        
     (Registrant's telephone number, including area code):   (303) 279-7641

                                Mark H. McKinnies
                    910 12th Street, Golden, Colorado  80401
                                 (303) 279-7641
            (Name, address, including zip code and telephone number,
              including area code, of agent for service of process)
                                        
APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:  From time to
time after this Registration Statement becomes effective.

If the only securities being registered on this form are being offered
pursuant to dividend or interest reinvestment plans, please check the
following box. [   ]

If any of the securities being registered on this Form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or
interest reinvestment plans, check the following box.  [ X ]

If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering.  [   ]

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under
the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [   ]

If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box.
  [   ]

                                        1
<PAGE>


CALCULATION OF REGISTRATION FEE
______________________________________________________________________________
                                     Proposed    Proposed
                                     maximum     maximum
Title of each class    Amount to     offering    aggregate      Amount of
of securities to be    be regis-     price per   offering       registration
registered             tered         share       price          fee
______________________________________________________________________________
Common Stock, $.01
par value:
 Issued and
  outstanding       695,596 Shares    $2.34 (2)  $1,627,695 (2)   $   480.17
 Issuable upon
  conversion of
  Debentures      3,129,890 Shares(1) $2.34 (3)  $7,323,943 (3)   $ 2,160.56
______________________________________________________________________________
Totals            3,825,486 Shares               $8,951,638       $ 2,640.73
______________________________________________________________________________

(1)  Includes a presently indeterminate number of shares issuable upon
conversion of Registrant's 4% Convertible Debentures, as such number may be
adjusted in accordance with Rule 416.
(2)  Based on the average price of the Common Stock on NASDAQ's  SmallCapSM
Market on February 6, 1998. The resulting fee is calculated pursuant to
section (c) of Rule 457 of Regulation C.
(3)  Estimated solely for the purpose of calculating the amount of the
registration fee pursuant to Rule 457(c), based on the average between the
closing bid and ask prices reported on NASDAQ's  SmallCapSM Market on February
6, 1998.  The resulting fee is calculated pursuant to section (c) of Rule 457
of Regulation C using a price of $2.34 per share.

THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR DATES
AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION
8(A), MAY DETERMINE.
                                        2
<PAGE>

INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT.  A
REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION.  THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT BECOMES
EFFECTIVE.  THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE
SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE
UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF
ANY SUCH STATE.

PROSPECTUS
SUBJECT TO COMPLETION, DATED February 12, 1998

                              EARTH SCIENCES, INC.
                        3,825,486 SHARES OF COMMON STOCK

      All  of  the shares of Common Stock, par value $0.01 per share  ("Common
Stock")  of  Earth  Sciences , Inc., a Colorado corporation  (the  "Company"),
offered  hereby  are being offered for resale by certain selling  shareholders
(the  "Selling  Stockholders") as described more fully  below  under  "SELLING
STOCKHOLDERS".   The  shares of Common Stock offered  hereby  by  the  Selling
Stockholders  consist  of  (i)  a  presently indeterminate  number  of  shares
issuable  upon  conversion in respect of $4,694,845 principal  amount  of  the
Company's 4% Convertible Debentures (the "Debentures") and (ii) 695,596 shares
of Common Stock currently issued and outstanding.  For purposes of determining
the  number of shares of Common Stock to be registered hereby, the  number  of
shares of Common Stock calculated to be issuable in connection with conversion
of the Debentures is based on an average closing bid price of the Common Stock
on  the  five trading days preceding the date of such conversion of $2.00  per
share,  which  price  is below the closing price of the  Common  Stock  as  of
February  6,  1998 ($2.34 per share), and has been arbitrarily selected.   The
number  of shares available for resale is subject to adjustment and  could  be
materially less or more than such estimated amount depending on factors  which
cannot be predicted by the Company at this time, including, among others,  the
future  market  price of the Common Stock. This presentation is not  intended,
and should in no way be construed, to constitute a prediction as to the future
market  price  of  the Common Stock.  See "RISK FACTORS - Dilutive  Effect  of
Issuance   of  Additional  Shares  on  Current  Shareholders"  and    "SELLING
STOCKHOLDERS".

      The  Selling Stockholders will offer their Common  Stock through  or  to
securities  brokers  or  dealers designated by them  in  the  over-the-counter
market  or in other transactions negotiated by the Selling Stockholders.   Any
such  sale of Common Stock by Selling Stockholders must be accompanied by,  or
follow  the  delivery  of,  a  prospectus filed with  a  current  registration
statement  relating  to  the  Common Stock being  offered,  unless  a  Selling
Stockholder  elects  to  rely  on  Rule 144  or  another  exemption  from  the
registration  requirements in connection with a particular  transaction.   The
Selling  Stockholders and any broker, dealer, or agent that participates  with
the  Selling Stockholders in the sale of Common Stock  offered hereby  may  be
deemed  "underwriters" within the meaning of the Securities Act  of  1933,  as
amended  ( the "Securities Act"), and any commission or discounts received  by
them and any profit on the resale of the Common Stock purchased by them may be
deemed  to be underwriting commissions under the Securities Act. (See "SELLING
STOCKHOLDERS" and "PLAN OF DISTRIBUTION").

The  Company's  Common Stock is traded in the over-the-counter market  and  is
quoted on NASDAQ's  SmallCapSM Market ("Nasdaq") under the symbol "ESCI".   On
February  11, 1998, the closing price of the Common Stock on Nasdaq was  $2.38
per share.
                                        3
<PAGE>

THE  ACQUISITION AND OWNERSHIP OF THE COMMON STOCK INVOLVE A  HIGH  DEGREE  OF
RISK.  THE COMMON STOCK SHOULD BE PURCHASED ONLY BY INVESTORS WHO ARE ABLE  TO
AFFORD  THE  RISK  OF  LOSS OF THEIR ENTIRE INVESTMENT.  (SEE  "RISK  FACTORS"
BEGINNING ON PAGE 7 OF THIS PROSPECTUS).

THESE  SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES  AND
EXCHANGE  COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND  EXCHANGE  COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED  UPON  THE
ACCURACY  OR ADEQUACY OF THIS PROSPECTUS.  ANY REPRESENTATION TO THE  CONTRARY
IS A CRIMINAL OFFENSE.

                                             Proceeds to
               Price          Offering       Selling Stock-  Proceeds to
               to Public(1)   Commissions(2) holders         Company(3)
______________________________________________________________________________
By Selling
 Stockholders
  Per Share..$      2.34      $    --        $      2.34    $     --
  TOTAL   ...$ 8,951,638      $    --        $ 8,951,638    $     --
______________________________________________________________________________
(1)    The  price  per  share  for  the  securities  offered  by  the  Selling
Stockholders is estimated at the closing sales price quoted by Nasdaq for  the
Common Stock at $2.34 on February 6, 1998.  The Common Stock may be offered at
the  current market price, which may vary through the period during which  the
securities may be offered, or at such other prices as may be negotiated by the
Selling Shareholder and the purchaser at the time of sale.
(2)  The securities to be sold by Selling Stockholders may be sold by them  or
through  or  to  securities brokers or dealers, which sales  may  involve  the
payment of commissions by the Selling Stockholders.
(3)   Does  not  reflect  expenses of this offering  payable  by  the  Company
estimated at $8,000.  (See "PLAN OF DISTRIBUTION" below).

      The  Company will not receive any proceeds from the sale of Common Stock
by the Selling Stockholders. (See "USE OF PROCEEDS").  In connection with this
offering,  the  Company  estimates that it will incur costs  of  approximately
$8,000  for legal, accounting, printing, and other costs.  Any separate  costs
of  Selling Stockholders will be borne by them.  Commissions or discounts paid
in  connection with the sale of securities by the Selling Stockholders will be
determined  by negotiations between them and the broker-dealer through  or  to
which  the  securities are to be sold and may vary depending  on  the  broker-
dealers'  commission  or mark up schedule, the size of  the  transaction,  and
other factors.  (See "PLAN OF DISTRIBUTION" below.)

       The  Selling  Stockholders  and  any  broker,  dealer,  or  agent  that
participates  with the Selling Stockholders in the sale of  the  Common  Stock
offered  hereby  may  be  deemed "underwriters"  within  the  meaning  of  the
Securities Act of 1933, as amended ( the "Securities Act"), and any commission
or discounts received by them and any profit on the resale of the Common Stock
purchased  by  them  may  be deemed to be underwriting commissions  under  the
Securities Act. (See "SELLING STOCKHOLDERS" and "PLAN OF DISTRIBUTION").

AVAILABLE INFORMATION
The  Company  is  subject  to  the reporting requirements  of  the  Securities
Exchange  Act  of  1934,  as  amended, and accordingly  files  reports,  proxy
statements, and other information with the Securities and Exchange  Commission
(the  "Commission").   Such reports, proxy statements, and  other  information
filed  with  the  Commission are available for inspection and copying  at  the
public  reference facilities maintained by the Commission at  Room  1024,  450
Fifth Street N.W., Judiciary Plaza, Washington, D.C.  20549, and at certain of
the  Commission's regional offices located at Northwestern Atrium Center,  500
West  Madison Street, Suite 1400, Chicago, Illinois  60604; and 7 World  Trade
Center,  New  York,  New York  10048, upon payment of the  charges  prescribed
therefor by the Commission.
                                        4
<PAGE>

The  Company  is  also  subject to the electronic filing requirements  of  the
Commission.  The commission maintains a Web site that contains reports,  proxy
and  information statements, and other information regarding issuers that file
electronically.  The address of the Web site is http://www.sec.gov.

The  Common  Stock  of the Company is currently traded in the over-the-counter
market  and  is quoted on NASDAQ, SmallCap Market.  Reports, proxy  statements
and  other information filed by the Company therewith can be inspected at  the
National  Association  of  Securities  Dealers,  Inc.  1735  K  Street   N.W.,
Washington , D.C.  20006.

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
The  following  documents  filed by the Company (File  No.  0-6088)  with  the
Commission are incorporated herein by reference.
      1.  The Company's annual report on Form 10-KSB, as amended, for the year
ended December 31, 1996 ("1996 10-KSB").
     2.  The Company's quarterly reports on Form 10-QSB for the quarters ended
March 31, 1997 June 30, 1997 and September 30, 1997.
     3.  The Company's current report on Form 8-K, as amended, dated April 30,
1997 reporting the acquisition of ADA Environmental Solutions LLC.
      4.   A  description  of  the Company's Common  Stock  contained  in  the
Registration Statement on Form 8-A as declared effective by the Securities and
Exchange Commission.
      5.  All documents filed by the Company pursuant to Section 13(a), 13(c),
14 and 15(d) of the Exchange Act subsequent to the date of this Prospectus and
prior  to the termination of the offering of the Common Stock shall be  deemed
to  be  incorporated by reference into this Prospectus and to be a part hereof
from the date of filing of such documents.

Any   statement  contained  in  a  document  incorporated  or  deemed  to   be
incorporated by reference herein shall be deemed to be modified or  superseded
for  purposes  of  this  Prospectus to the extent that a  statement  contained
herein  or in any other subsequently filed document which also is or is deemed
to  be incorporated by reference herein modifies or supersedes such statement.
Any such statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this Prospectus.

The  Company  will  provide  without charge  to  each  person,  including  any
beneficial  owner,  to whom a Prospectus is delivered, upon  written  or  oral
request  of  such  person, (i) a copy of the Company's  annual  and  quarterly
reports as filed with the Commission, and/or (ii) a copy of any or all of  the
documents  which are incorporated by reference herein, other than exhibits  to
such  documents which are not specifically incorporated by reference  therein.
The  annual reports on Form 10-KSB include audited financial statements of the
Company.   Requests  should  be directed to Earth  Sciences,  Inc.,  910  12th
Street,  Golden,  Colorado  80401,  Attention:  Investor Relations  (telephone
303-279-7641).

_________________________________

No person is authorized to give any information or make any representation not
contained  in  this prospectus and, if given or made, such information  should
not be relied upon as having been authorized.

THE COMPANY
Earth Sciences, Inc. (the "Company") is a diversified mineral exploration  and
development company specializing in chemical processing, air pollution control
and mineral exploration.  Production of purified phosphate products in Calgary
commenced  in  June  1997.  The Company was incorporated  under  the  name  of
Colorado Central Mines, Inc. in Colorado in 1957.  Current activities  of  the
Company  include (1) the operation of its recently modified solvent extraction
facility  in  Calgary, Alberta for production of purified phosphate  products;
(2)  continued  exploration  activities for  gold  and  diamond  resources  in
Venezuela  (3)  flue  gas conditioning technology for coal-fired  boilers  and
other applications provided through ADA Environmental Solutions LLC ("ADA"), a
majority-owned  subsidiary, and (4) maintenance of  its  position  in  several
mineral resources and prospects in the Western US.
                                        5
<PAGE>

The  Company's  solvent  extraction facility in  Calgary,  Alberta,  recovered
uranium  from  phosphoric  acid  during the period  from  1983  through  1987.
Uranium  oxide production was suspended in the fall of 1987 when the  adjacent
fertilizer  plant  from which the facility received its feed  stock  suspended
operations.   The  contract under which the uranium was sold was  modified  in
1990  to  allow  unrestricted alternative use of the facility. Revamp  of  the
facility  to allow production of purified phosphate products was completed  in
1997.  The  Calgary facility is routinely producing technical grade phosphoric
acid and steps are underway for production of food grade product targeted  for
the  end  of the first quarter in 1998. Production and sales of products  have
been  increasing  monthly as the Company establishes and  expands  its  market
position.   The  Company  intends to pursue the  recovery  of  other  valuable
elements in the feed stock once routine production and cash flow are achieved.
Initial  investigation of such recovery potential is estimated to cost between
$20,000-$50,000 and is expected to be funded out of internally generated  cash
flow.

RECENT DEVELOPMENTS

Sale of Convertible Debentures
In  January and February 1998, the Company issued $3,080,845 of 4% convertible
debentures  (the "Debentures") for which the Company received net proceeds  of
approximately  $2,830,000.   The Debentures were  issued  to  provide  working
capital  for  the  Calgary  facility  for  production  of  purified  phosphate
products,  final  obligations associated with the recent ADA  acquisition,  to
fund  exploration efforts in Venezuela, and general working  capital  for  the
Company.   Interest  on  the  Debentures is payable  quarterly.   Due  to  the
difference between the fair market value of the Common Stock on the  date  the
Debentures  were sold and the conversion price, the Company will  recognize  a
deferred  financing  cost  of $1,027,000 in the first  quarter  of  1998.  The
Debentures  are convertible at any time following 45 days after  the  issuance
thereof.   The  deferred financing cost is being amortized  over  the  45  day
period  ending when the Debentures are convertible. The Debentures  mature  on
January  31, 1999. The Debentures are convertible into shares of Common  Stock
based on a 25% discount from the market price of the Common Stock at the  time
of  conversion,  but  not  in  excess of $2.00 per  share.   The  Company  may
repurchase  the Debentures at a 25% premium if the market price of the  Common
Stock  is below $1.50 per share for any two trading days out of a five trading
day  period.   This Prospectus includes the resale of shares of  Common  Stock
issuable by the Company on the conversion of the Debentures.

Rights to Explore and Mine Diamond Concession Acquired
In  January 1998, the Company signed a letter agreement with CODSA 14 S.A.  to
acquire exclusive rights to explore and mine it's diamond concession.  Located
in  southeastern Venezuela near the Brazil border, the concession covers 6,177
acres  (2,500 hectares).  Exploratory mining of the alluvium on the concession
has  recently produced diamonds in the two to five carat range in addition  to
minor gold production.  The Company is obligated to make payments of cash  and
stock  valued  at a total of $50,000 during the 6-8 month exploration  period,
after  which  it will have earned the exclusive right to lease the concession.
The  lease terms call for a sliding scale royalty that ranges from 5-20% based
on  the size and grade of the diamonds mined.  The Company expects to continue
exploration and exploration mining of the concession while it evaluates  other
potential in the area.

ADA Delivers Commercial Units to Wisconsin and Mississippi
In  December  1997,  ADA delivered its first three commercial  units;  one  to
Wisconsin  Power  &  Light Company ("WPL") and two to  Mississippi  Power  Co.
("MPC"), in accordance with contract terms.  Injection of chemical at the  WPL
installation commenced in January, 1998 and was suspended after concerns arose
from the results of co-injection of other chemicals.  The WPL unit is expected
to  go  back  on  line in the first half of February.  The units  at  MPC  are
awaiting  completion  by MPC of necessary electrical and  piping  connections.
Based  on  the  current schedule for completion of these items, one  unit  may
commence  injection in March with the remaining unit following on in April  at
the  earliest.  Although tests over several months were successfully performed
at  other utility companies, there can be no assurances that any of the  units
will perform as anticipated.
                                        6
<PAGE>

Termination of Interest in Cerro Gordo Property
In January 1998, after receiving the evaluation and analysis of trench samples
taken  on  the  property, the Company gave the required 30 day notice  of  its
intent  to  cease funding of the joint venture activities at the  Cerro  Gordo
property  in  Inyo County, California.  The trench results did not demonstrate
sufficient  continuity  in  gold-bearing mineralization  for  the  Company  to
continue further exploration efforts.

The principal executive offices of the Company are located at 910 12th Street,
Golden, Colorado  80401, and its telephone number is (303) 279-7641.

FORWARD-LOOKING STATEMENTS

In  addition  to  historical information, this Prospectus  and  the  documents
incorporated  herein  by  reference contain forward-looking  statements.   The
forward-looking statements contained herein are subject to certain  risks  and
uncertainties that could cause actual results to differ materially from  those
in the forward-looking statements.  Factors that might cause such a difference
include, but are not limited to, those discussed in the section entitled "RISK
FACTORS" set forth below.  Investors are cautioned not to place undue reliance
on  these forward-looking statements, which reflect management's analysis only
as  of  the date of such statements.  The Company undertakes no obligation  to
publicly  revise  these  forward-looking  statements  to  reflect  events   or
circumstances that arise after the date of such statements.

RISK FACTORS
An investment in the Shares is speculative and involves a high degree of risk.
In  analyzing  the  offering, prospective investors should  read  this  entire
Prospectus and the information incorporated herein by reference, and carefully
consider,  among others, the following risk factors in addition to  the  other
information set forth elsewhere in this Prospectus.

Specifics Risks Related to the Company
No  Dividends.  The Company has paid no cash dividends on its Common Stock and
has  no  present intention of paying cash dividends in the foreseeable future.
It  is the present policy of the Board of Directors to retain all earnings  to
provide  for  the  growth of the Company.  Payments of cash dividends  in  the
future  will  depend, among other things, upon the Company's future  earnings,
requirements for capital improvements, the operating and financial  conditions
of the Company and other factors deemed relevant by the Board of Directors.

Lack  of Profitability.  While the Company reported net income in fiscal 1995,
the  Company's operating history has resulted in losses from operations in the
fiscal  years  ending  December  31,  1988  through  1994,  in  1996,  and  an
anticipated loss for 1997.  While certain of the Company's operations  may  be
profitable during a given fiscal year, the Company's operations as a whole may
be  unprofitable  due to exploration and development costs on properties  from
which   no   revenue   is  derived,  to  continuing  corporate   general   and
administrative costs and to interest expense associated with long term debt.

Dilutive Effect of Issuance of Additional Shares on Current Shareholders.  The
Board  of  Directors  has the authority to authorize the  offer  and  sale  of
additional  securities without the vote of or notice to existing shareholders,
and  it  is likely that additional securities will be issued to provide future
financing  or  in  connection with acquisitions.  The issuance  of  additional
securities could dilute the percentage interests and per share book  value  of
existing  shareholders,  including  persons  purchasing  securities  in   this
offering.

Volatility  of  Price for Common Stock.  The market price for  shares  of  the
Company's  Common Stock may be highly volatile depending on news announcements
or changes in general market conditions.  In recent years the stock market has
experienced extreme price and volume fluctuations.
                                        7
<PAGE>

Risks Related to the Exploration and Development of Minerals
Nature  of Mineral Exploration and Development; No Proven Commercially  Viable
Reserves  Yet  Discovered  on  the  Company's  Mineral  Properties  (with  the
exception  of  the  San Luis gold mine).  Exploration for minerals  is  highly
speculative  and  may involve greater risks than many other businesses.   Many
exploration  programs,  including  those which  have  been  conducted  by  the
Company,   do   not  result  and  have  not  resulted  in  the  discovery   of
mineralization  and  any mineralization discovered may not  be  of  sufficient
quantity or quality to be profitably mined.  The Company's mineral exploration
and  development  activities are subject to all of the operating  hazards  and
risks  normally incident to such activities, such as encountering  unusual  or
unexpected formations, environmental pollution, personal injury and  flooding.
All  of  these  factors may result in losses in relation to the amounts  spent
which  are  not  recoverable.  With the exception of the San  Luis  gold  mine
(where   mining  operations  have  been  terminated  as  described  below   in
"Termination  of  Mining at the San Luis Gold Mine"), no  commercially  viable
reserves have yet been discovered on the Company's mineral properties.

Competition and Scarcity of Mineral Lands.  Many companies and individuals are
engaged  in  mineral exploration and development, including large, established
mining  companies  with  substantial capabilities and long  earnings  records.
There  is  a  limited  amount of desirable mineral lands available  for  claim
staking, lease or other acquisition in the United States ("US"), Venezuela and
other  areas where the Company contemplates conducting exploration activities.
The  Company  may  be  at  a  competitive disadvantage  in  acquiring  mineral
properties since it must compete with these individuals and companies, many of
which  have greater financial resources and larger technical staffs  than  the
Company.   From  time  to  time,  specific properties  or  areas  which  would
otherwise  be  attractive to the Company for exploration  or  acquisition  are
unavailable due to their previous acquisition by other companies.

Fluctuation  in  the  Price  of Minerals.  The market  price  of  minerals  is
extremely  volatile and beyond the control of the Company.   Gold  prices  are
generally influenced by basic supply/demand fundamentals.  The market dynamics
of  supply/demand can be heavily influenced by economic policy, i.e.,  central
banks  sales/purchases,  political  unrest,  conflicts  between  nations,  and
general  perceptions about inflation.  Fluctuating metal  prices  may  have  a
significant  impact on the Company's results of operations and operating  cash
flow.   Furthermore, if the price of a mineral should drop  dramatically,  the
value  of  the Company's properties which are being explored or developed  for
that  mineral could also drop dramatically, and the Company might not be  able
to  recover  its investment in those properties.  The decision to put  a  mine
into  production, and the commitment of the funds necessary for that  purpose,
must  be made long before the first revenues from production will be received.
During  the  last  five years, the average annual market  price  of  gold  has
fluctuated  between  $280  per ounce and $384 per ounce.   Price  fluctuations
between  the  time  that  such  a decision is made  and  the  commencement  of
production  can change completely the economics of the mine.  Although  it  is
possible  to  protect  against  price  fluctuations  by  hedging  in   certain
circumstances, the volatility of mineral prices represents a substantial  risk
in  the  mining  industry generally which no amount of planning  or  technical
expertise  can eliminate.  The Company is not involved in, nor does it  expect
to enter into any hedging activities

Environmental  Controls.  Compliance with environmental  quality  requirements
and  reclamation  laws  imposed  by  federal,  state,  provincial,  and  local
governmental  authorities  may necessitate significant  capital  outlays,  may
materially  affect  the economics of a given property, or may  cause  material
changes or delays in the Company's intended activities.  The Secretary of  the
Interior  has  directed  the BLM to propose amendments to  surface  management
regulations   that   impose  more  stringent  reclamation  and   environmental
protection  requirements on mining operations.  The extent of the changes,  if
any,  which  may be made by the BLM is not presently known, and the  potential
impact on the Company as a result of future regulatory action is difficult  to
predict.  New or different environmental standards imposed by any governmental
authority in the future may adversely affect the Company's activities.

Uncertainty of Title.  Several of the Company's mining properties which are in
the  United States are unpatented mining claims to which the Company, or those
under  which the Company holds its rights, has only possessory title.  Because
title to unpatented mining claims is subject to inherent uncertainties, it  is
difficult  to  determine  conclusively ownership  of  such  claims.   Since  a
substantial portion of all mineral
                                        8
<PAGE>
exploration,  development  and  mining in the  United  States  now  occurs  on
unpatented mining claims, this uncertainty is inherent in the mining industry.
In  addition, in order to retain title to an unpatented mining claim, a  claim
holder  must  have  met annual assessment work requirements ($100  per  claim)
through  September  1, 1992 and must have complied with  stringent  state  and
federal  regulations pertaining to the filing of assessment  work  affidavits.
Moreover,  after  September 1, 1992, the right to locate or maintain  a  claim
generally is conditional upon payment to the United States of a rental fee  of
$100  per  claim  per  year  for each assessment year  instead  of  performing
assessment  work.  State law may, in some instances, still require performance
of assessment work.

The  present  status of the Company's properties as unpatented  mining  claims
located on public lands of the U.S. allows the claimant the exclusive right to
mine  and  remove  valuable minerals, such as precious  and  base  metals  and
industrial  minerals, found therein, and also to use the surface of  the  land
solely for purposes related to mining and processing the mineral-bearing ores.
However, legal ownership of the land remains with the U.S.  Accordingly,  with
an  unpatented claim, the U.S. retains many of the incidents of  ownership  of
land,  the U.S. regulates use of the surface, and the Company remains at  risk
that  the  claims  may  be forfeited either to the U.S. or  to  rival  private
claimants due to failure to comply with statutory requirements as to locations
and  maintenance  of  the  claims.  If there  exists  a  valuable  deposit  of
locatable  minerals (which is the requirement for the unpatented claim  to  be
valid  in  the  first  place),  and  provided  certain  levels  of  work   and
improvements have been performed on an unpatented mining claim, the Mining Law
of  1872 authorizes claimants to then seek to purchase the full title  to  the
claim,  thereby  causing  the  claim to become the  private  property  of  the
claimant.  Such full ownership expands the claimant's permissible uses of  the
property (to any use authorized for private property) and eliminates the  need
to  comply  with maintenance and reporting requirements necessary  to  protect
rights in an unpatented claim.  At present there is a statutory moratorium  in
effect  prohibiting the Department of Interior from accepting  and  processing
new  applications for purchase of fee title to mining claims.  The  moratorium
is likely to continue indefinitely but does not affect the ability to hold and
develop valuable deposits by means of unpatented mining claims.

Proposed  Legislation  Affecting the Mining Industry.  For  the  last  several
Congressional  sessions, bills have been repeatedly  introduced  in  the  U.S.
Congress which would supplant or radically alter the provisions of the  Mining
Law  of 1872.  As of December 31, 1997, no such bills have passed, although  a
number  of  differing  and sometimes conflicting bills are  now  pending.   If
enacted,  such  legislation could substantially increase the cost  of  holding
unpatented mining claims and could impair the ability of companies to  develop
mineral  resources on unpatented mining claims.  Under the  terms  of  certain
proposed  legislation,  the  ability  of  companies  to  obtain  a  patent  on
unpatented  mining  claims  would  be  nullified  or  substantially  impaired.
Moreover,  certain forms of such proposed legislation contain  provisions  for
the  payment  of royalties to the federal government in respect of  production
from unpatented mining claims, which could adversely affect the potential  for
development  of such claims and the economics of operating existing  mines  on
federal  unpatented mining claims.  The Company's financial performance  could
therefore  be  affected  adversely by passage  of  such  legislation.   It  is
impossible  to predict at this point what any legislated royalties  might  be,
but a potential three to four percent gross royalty, assuming a gold price  of
$300  per ounce, would have an approximated $9 to $12 per ounce impact on  the
Company's costs of any production from unpatented mining claims.

Uncertainty  of Funding for Exploration.  The Company has funded much  of  its
exploration  and  acquisition activities through joint  venture  arrangements,
which  minimize  the cost of such activities to the Company and  allow  it  to
explore and acquire a greater number of properties than it would otherwise  be
able  to explore or acquire on its own.  The Company has also funded a portion
of  its  exploration activities without joint venture participation, resulting
in increased costs to the Company.  The Company has been successful in raising
such  funds for its exploration activities.  Additional funding from  existing
partners  or third parties, however, may be necessary to conduct detailed  and
thorough  evaluations  of, and to develop certain properties.   The  Company's
ability  to  obtain this financing will depend upon, among other  things,  the
price  of  gold and the industry's perception of its future price.  Therefore,
availability  of  funding is dependent largely upon  factors  outside  of  the
Company's control, and cannot be accurately predicted.  The
                                        9
<PAGE>
Company  does not know from what sources it will derive any required  funding.
If the Company is not able to raise additional funds (as to which there can be
no  assurance), it will not be able to fund certain exploration activities  on
its own.

Uncertainty of Development and Operating Property Economics and Ore Grades  at
Development   Properties.   Decisions  as  to  whether  any  of  the   mineral
development properties which the Company now holds or which it may acquire  in
the  future contain commercially minable deposits, and whether such properties
should  therefore be sold or brought into production, depend upon the  results
of exploration programs and/or feasibility analyses and the recommendations of
duly  qualified engineers or geologists.  Such decisions involve consideration
and  evaluation of several significant factors, including, but not limited to,
the  (a)  costs of bringing a property into production, including  exploration
and  development  work,  preparation  of production  feasibility  studies  and
construction  of  production  facilities,  (b)  availability  and   costs   of
financing, (c) ongoing costs of production, (d) market prices for the  mineral
to  be  produced,  and  (e) the amount and grades of reserves  or  mineralized
material.   There  can be no assurance that any of the development  properties
now  held by the Company, or which may be acquired by the Company, contains  a
commercially  minable  mineral deposit, and therefore no  assurance  that  the
Company will ever generate a positive cash flow from the sale of or production
operations  on such properties. In addition, once a property is  sold  with  a
retained royalty or placed into production, risks still exist that the  amount
and  grade  of its reserves will not actually be as predicted.  To the  extent
that  lower amounts and/or grades of reserves are experienced, costs per  unit
produced  and  profitability can be adversely affected.   Depending  upon  the
extent of such an effect in any of the Company's properties, the Company could
incur a writedown on its investment in any such property.

Termination of Mining at the San Luis Gold Mine.  Royalty income from the  San
Luis  gold mine has been the only significant source of income for the Company
during the period from 1990 through 1996.  The mine was leased to and operated
by  Battle  Mountain Gold Co. ("BMGC").  As reported to the Company  by  BMGC,
mining  was  completed  at the end of October, 1996.   The  Company's  royalty
income from the property ceased shortly after that time.

Risks  Related to the Production and Sale of Purified Phosphate  Products  and
ADA

Uncertain  Commercial  Viability of Solvent Extraction Process.   The  solvent
extraction  process  developed by the Company for the production  of  purified
phosphoric  acid ("PPA") has not been proven on a continuing commercial  basis
at the Calgary plant.  Although the Company has performed numerous bench-scale
and  pilot  plant  test of the process, there can be no  assurances  that  the
process  will  yield  satisfactory  results  when  employed  on  a  continuing
commercial scale.

Limited  Experience in Marketing Industrial Chemicals and  Lack  of  Long-term
Sales  Contracts.  The growth and profitability of operations at the Company's
solvent  extraction facility in Calgary will be dependent  upon,  among  other
things,  the sale of purified phosphate products to chemical distributors  and
customers.   The  Company  has  limited  experience  in  marketing  industrial
chemicals  and is relying on consultants and others to initiate  and  maintain
sales contacts.  PPA is not typically sold under long-term contracts, and  the
Company  does  not  have  any long-term commitments to  purchase  its  planned
products.   There can be no assurances that the Company will be successful  in
its future sales efforts.

Supply  of  Raw Materials. The growth and profitability of operations  at  the
Company's solvent extraction facility in Calgary will be dependent upon, among
other  things,  the  availability of sufficient raw  materials  at  reasonable
prices.   The  Company has negotiated a renewable annual supply contract  with
Farmland  Industries ("Farmland") and a supply arrangement  with  Agrium  U.S.
Inc.  ("Agrium")  to supply the estimated requirement of superphosphoric  acid
("SPA").   The contract with Farmland contains provisions that allow extension
of  the  contract  in the future or termination upon a 90 day written  notice.
There  can  be  no  assurances that the Company will be able  to  extend  this
contract  and  supply  arrangement  in the  future  and/or  obtain  sufficient
quantities of SPA at reasonable prices.
                                       10
<PAGE>

Ability  to  Expand Geographically. The growth and profitability of operations
at  the  Company's  solvent extraction facility in Calgary will  be  dependent
upon,  among  other things, the ability to become the predominate supplier  of
PPA in the geographic region surrounding Calgary and on the US West Coast, and
to  sell on an increasing basis to the Minneapolis/Chicago area.  There can be
no assurance that the Company's efforts to expand sales can be accomplished on
a profitable basis.

Competition.   The  Company's purified phosphate  products  will  be  sold  in
markets  that  are  highly  competitive.  The  principal  competitive  factors
include product quality, price and distribution capabilities.  There can be no
assurances  that  the  Company  will be able to compete  successfully  against
current  and  future  competitors based on these factors.   The  Company  will
compete  with several domestic and international producers, many of whom  have
substantially  greater  financial,  production,  distribution  and   marketing
resources  than  the  Company.  Increased competition could  result  in  price
reductions, reduced margins and loss of market share, all of which could  have
a  material adverse affect on the Company's business, financial condition  and
results of operations.

Effect of Potential Lack of Demand for ADA's Services.  If there is no demand,
or  the  demand  is  less  than projected, for ADA's  services  for  flue  gas
conditioning, the Company will not recognize the synergies expected  from  its
acquisition,  because ADA will not be able to utilize the  Company's  purified
phosphate products.

THE OFFERING

     Common Stock outstanding prior to the offering  ...15,031,947 Shares
     Common Stock offered by the Sellingstockholders ... 3,825,486 Shares (1)
     Common Stock to be outstanding after the
      offering  ....................................... 18,161,837 Shares
- -----------------------------------
(1)   Of  the  3,825,486  shares  of  Common  Stock  offered  by  the  Selling
Stockholders,  695,596  shares  are  currently  issued  and  outstanding,  and
3,129,890 shares issuable on the conversion of the Debentures are hereby being
registered for resale, although a presently indeterminate amount of shares may
be issued upon conversion of the Debentures.

USE OF PROCEEDS

The  Company will receive no proceeds from the sale of shares of Common  Stock
by the Selling Stockholders.

SELLING STOCKHOLDERS

The  following  table provides certain information, as of  the  date  of  this
prospectus,  respecting the Selling Stockholders, the shares of  Common  Stock
held by them or to be held, to be sold, and to be held following the offering,
assuming  the sale by such Selling Stockholders of all Shares of Common  Stock
offered.
                                       11
<PAGE>

                                                             Shares Owned
            Securities Owned Prior to the Offering (1)     After Offering (1)
                      Common                Shares to
Selling Stockholders  Stock     Debentures  be Offered       Number       %
______________________________________________________________________________
Arcadia Mutual Fund,
 Inc.(5)             153,545         -         153,545          0         -
Azucar Ltd.(3)(6)       -          26,666       26,666          0         -
Lucy Birkemeier (3)     -           7,333        7,333          0         -
Chadel Ltd.(4)(7)       -         190,000      190,000          0         -
James F. Cool (4)     25,586      100,000      125,586          0         -
Jimmy D. Dowda (3)(4)   -          94,000       94,000          0         -
Edwards Capital
 Corp.(4)(8)            -          33,333       33,333          0         -
Bruce Elliot (3)        -           7,333        7,333          0         -
Robert Guthrie (3)      -           7,333        7,333          0         -
Karron Heathman,
 Trustee (4)            -          66,667       66,667          0         -
Matthew P.T.
 Holstein (3)         11,374       16,667       28,041          0         -
Philip M.Holstein (4) 20,475       33,333       53,808          0         -
Tom Hullverson (4)      -          66,667       66,667          0         -
Charles Kerr             596         -             596          0         -
Bruce Knox (3)          -          10,000       10,000          0         -
Russell G. Kraus (4)   1,660       16,667       18,327          0         -
Jon Lane (3)            -          15,333       15,333          0         -
Lane Consulting
   Ltd.(4)(9)           -          33,323       33,323          0         -
Ed Leinster (3)         -          41,333       41,333          0         -
Frederick A. Lenz (3)   -          20,666       20,666          0         -
Michael Louis (3)       -           8,000        8,000          0         -
Dave Mallen (3)         -           6,666        6,666          0         -
John Mitchell (3)       -          12,666       12,666          0         -
Keith A. Mazer (10)    2,533         -           2,533          0         -
Nostradamus S.A.(3)(11) -         233,333      233,333          0         -
Olympus Capital,
 Inc. (3)(4)(12)        -         270,000      270,000          0         -
Jean Pasquali Z. (13) 45,000         -          45,000          0         -
Pegasus Investment
   Holdings Ltd. (14) 59,957         -          59,957          0         -
Thomas W. Richardson   1,220         -           1,220          0         -
Securicorp, Inc.(4)(15) -          63,906       63,906          0         -
Barry Seidman        232,332         -         232,332          0         -
The Shaar Fund
  Ltd. (2)(4)(16)     18,748      995,333    1,014,081          0         -
The Shaar Advisory
  Services Ltd.(2)(16)53,585      177,333      230,918          0         -
James A. Skalko(3)(4)   -         135,333      135,333          0         -
Joseph Sloves (4)        763       33,333       34,096          0         -
James W. Spratt,
  II(3)(17)             -           7,333        7,333          0         -
Toron Co. Ltd. (18)   43,575         -          43,575          0         -
World Capital Funding,
  Inc. (4)(10)        24,647       66,667       91,314          0         -
Arnold Zousmer (4)      -         333,333      333,333          0         -
______________________________________________________________________________
  Totals             695,596    3,129,890    3,825,486          0         *
==============================================================================
                                       12
<PAGE>
* Less than one percent
(1)  Shares owned prior to the offering include all shares of Common Stock
owned by the Selling Stockholders.  Shares owned after the offering assume the
sale of all shares of Common Stock offered pursuant to this offering.
(2)  The listed Selling Stockholders hold an aggregate of  $759,000 in
principal of Debentures which mature on March 31,1999.  Such Debentures are
convertible at any time to shares of Common Stock based on 75% of  the average
closing bid price of the Common Stock on the five trading days preceding the
date of conversion.  The number of shares shown as being offered in the table
is based on a hypothetical conversion price of $1.50 per share (which is based
on a hypothetical average closing bid price of $2.00 on the five trading days
preceding the date of such conversion). The Debentures must be converted into
shares of Common Stock before resale of the Common Stock offered by the
Selling Stockholders pursuant to this offering.
(3)  The listed Selling Stockholders hold an aggregate of  $855,000 in
principal of Debentures which mature on August 31,1998.  Such Debentures are
convertible at any time to shares of Common Stock based on 75% of  the average
closing bid price of the Common Stock on the five trading days preceding the
date of conversion.  The number of shares shown as being offered in the table
is based on a hypothetical conversion price of $1.50 per share (which is based
on a hypothetical average closing bid price of $2.00 on the five trading days
preceding the date of such conversion). The Debentures must be converted into
shares of Common Stock before resale of the Common Stock offered by the
Selling Stockholders pursuant to this  offering.
(4) The listed Selling Stockholders hold an aggregate of  $3,080,845 in
principal of Debentures which mature on January 31,1999.  Such Debentures are
convertible at any time following 45 days after issuance to shares of Common
Stock based on 75% of  the average closing bid price of the Common Stock on
the five trading days preceding the date of conversion.  The number of shares
shown as being offered in the table is based on a hypothetical conversion
price of $1.50 per share (which is based on a hypothetical average closing bid
price of $2.00 on the five trading days preceding the date of such
conversion).  The Debentures must be converted into shares of Common Stock
before resale of the Common Stock offered by the Selling Stockholders pursuant
to this offering.
(5)  Arcadia Mutual Fund, Inc. is beneficially owned by a number of non-US
persons.
(6)  Azucar Ltd. is beneficially owned by a number of non-US persons.
(7)  Chadel Ltd. is beneficially owned by a number of non-US persons.
(8)  Edwards Capital Corp. is beneficially owned by a number of non-US
persons.
(9)  Lane Consulting Ltd. is beneficially owned by a number of non-US persons.
(10)  Keith Mazer is the President and controlling shareholder of World
Capital Funding, Inc.
(11)  Nostradamus S.A. is beneficially owned by a number of non-US persons.
(12)  Olympus Capital, Inc. is beneficially owned by James W. Spratt, III.
(13)  Jean Pasquali Z. is president of the Company's majority owned Venezuelan
subsidiaries and received the shares of Common Stock being offered in the
table as compensation for services to the Company.
(14)  Pegasus Investment Holdings Ltd. is beneficially owned by a number of
non-US persons.
(15)  Securicorp, Inc. is beneficially owned by  Mark Berger.
(16)  The Shaar Fund Ltd. and The Shaar Advisory Services are beneficially
owned by a number of non-US persons.
(17)  James W. Spratt, II is the father of James W. Spratt, III.
(18)  Toron Co. Ltd. is beneficially owned by a number of non-US persons.
                                       13
<PAGE>

PLAN OF DISTRIBUTION

This  Prospectus relates to the public offer and sale by certain  shareholders
(the  "Selling Stockholders") of 695,596 shares of Common Stock currently held
by Selling Stockholders and an indeterminate number of  shares of Common Stock
of the Company issuable on conversion of the Debentures.

The  Common Stock to be sold by the Selling Stockholders  may be sold by  them
from  time  to  time  directly  to  purchasers.   Alternatively,  the  Selling
Stockholders may, from time to time, offer the Common Stock through dealers or
brokers, who receive compensation in the form of commissions from the  Selling
Stockholders and/or the purchasers of the Common Stock for whom  they  act  as
agents.  As of the date hereof, no Selling Stockholder has advised the Company
that  it  has entered into any agreement or understanding with any  dealer  or
broker  for  the offer or sale of the Common Stock.  The Selling  Stockholders
may  enter into such agreements or understandings in the future.  The  Selling
Stockholders  may  also offer some or all of the Common Stock  through  market
transactions on Nasdaq, on which the Company's Common Stock is traded.   Sales
of  the  Common  Stock through brokers may be made by any  method  of  trading
authorized  by  Nasdaq,  including block trading in  negotiated  transactions.
Without limiting the foregoing, such brokers may act as dealers purchasing any
or  all of the Common Stock covered by this Prospectus.  Sales of Common Stock
are,  in  general, expected to be made at the market price prevailing  at  the
time  of each such sale; however, prices in negotiated transactions may differ
considerably.   No  Selling  Shareholder  has  advised  the  Company  that  it
anticipates paying any consideration, other than usual and customary  broker's
commissions,  in  connection  with sales of the  Common  Stock.   The  Selling
Stockholders are acting independently of the Company in making decisions  with
respect to the timing, manner and size of each sale.

DESCRIPTION OF COMMON STOCK

The  authorized capital stock of the Company consists of 25,000,000 shares  of
Common  Stock,  $0.01 par value per share.  All of the issued and  outstanding
stock of the Company is fully paid and nonassessable.  Holders of Common Stock
are  entitled  to  receive dividends, when and if declared  by  the  Board  of
Directors,  out of funds legally available therefore and to share  ratably  in
the  net  assets of the Company upon liquidation.  Holders of Common Stock  do
not  have preemptive rights to subscribe for additional shares, nor are  there
any  redemption or sinking fund provisions associated with the  Common  Stock.
There  are  currently 15,031,947 shares of Common Stock outstanding  owned  by
approximately 3,000 persons and/or entities.

Holders  of  Common Stock are entitled to one vote per share  on  all  matters
requiring  a vote of the shareholders.  Since the Common Stock does  not  have
cumulative  voting rights in electing directors, the holders of  more  than  a
majority of the outstanding shares of Common Stock voting for the election  of
directors can elect all of the directors whose terms expire that year, if they
so choose.

LEGAL MATTERS
Certain  legal matters with respect to the legality of the securities  offered
hereby and the organization and existence of the Company have been passed upon
for  the  Company by Parcel, Mauro & Spaanstra, P.C., 1801 California  Street,
Suite 3600, Denver, Colorado  80202.

EXPERTS
The  consolidated financial statements which are incorporated by reference  in
this  prospectus by reference from the Company's Annual Report on Form 10-KSB,
as amended, for the year ended December 31, 1996, have been audited by Hein  +
Associates LLP, certified public accountants, as stated in their report, which
are  incorporated  herein  by  reference, and have  been  so  incorporated  in
reliance  upon  such  report given the authority of that firm  as  experts  in
accounting and auditing.
                                       14
<PAGE>
PART II
INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14.  Other Expenses of Issuance and Distribution.

      The  following  table  sets forth the various expenses  payable  by  the
Registrant  in  connection with the sale and distribution  of  the  securities
being  registered.   All  of the amounts shown are estimated  except  for  the
Securities and Exchange Commission registration fee.  The Selling Shareholders
will not be paying any of these expenses.

          SEC registration fee          $ 2,640.73
          Printing and mailing expenses $   500.00
          Legal fees and expenses       $ 2,000.00
          Accounting fees and expenses  $ 2,000.00
                                      ------------
                     Total              $ 7,140.73
                                      ============

Item 15.  Indemnification of Directors and Officers.

      Article  7-109  of the Colorado Business Corporation Act authorizes  the
indemnification of directors and officers against liability incurred by reason
of  being  a  director  or officer and against expenses (including  attorney's
fees), judgments, fines and amounts paid in settlement and reasonably incurred
in connection with any action seeking to establish such liability, in the case
of third-party claims, if the officer or director acted in good faith and in a
manner he reasonably believed to be in or not opposed to the best interests of
the  corporation,  and  in the case of actions by  or  in  the  right  of  the
corporation, if the officer or director acted in good faith and in a manner he
reasonably  believed  to be in or not opposed to the  best  interests  of  the
corporation  and  if  such officer or director shall not  have  been  adjudged
liable   to   the   corporation,   unless  a   court   otherwise   determines.
Indemnification  is  also authorized with respect to any  criminal  action  or
proceeding  where  the  officer or director also had no  reasonable  cause  to
believe his conduct was unlawful.

      The above discussion of the Colorado Business Corporation Act is only  a
summary and is qualified in its entirety by the full text of the foregoing.

Article VIII of the Registrant's Bylaws provides as follows:

      Each  past,  present and future director and officer of the  corporation
shall  be indemnified by the corporation against all expenses, penalties,  and
liabilities, including attorneys' fees, reasonably incurred by or imposed upon
him  in  connection  with any actual or threatened claim,  demand,  action  or
proceeding,  whether civil or criminal, or in connection with  any  settlement
thereof,  to which he may be made a party, or in which he may become involved,
by  reason  of  his  being  or  having been  a  director  or  officer  of  the
corporation,  whether  or not he is a director or officer  at  the  time  such
expenses,  penalties or liabilities are incurred, except  in  cases  where  he
shall  be  finally  adjudged in such action or proceeding  to  be  liable  for
willful  misconduct  in  the performance of his duties  as  such  director  or
officer.   The right of indemnification herein provided shall be  in  addition
to,  and  not exclusive of, all other rights to which such director or officer
may  be entitled and the right of indemnification herein provided shall  inure
to  the  benefit  of  the personal representatives of deceased  directors  and
officers.

                                       15
<PAGE>

Item 16.  Exhibits.

Exhibit
Number              Description
3.1       Amended and Restated Certificate of Incorporation of the Company (1)
3.2       Bylaws of the Company, as amended  (2)
4.1       Specimen Common Stock Certificate (3)
5.1*      Opinion of by Parcel, Mauro & Spaanstra, P.C. as to legality of the
          shares
23.1*     Consent of Hein + Associates LLP
23.2*     Consent of by Parcel, Mauro & Spaanstra, P.C. (contained in Exhibit
5.1)

*  Filed herewith.
- ------------------------------------------------------------------------------
(1)  Incorporated by reference from the Company's Annual Report on Form 10-KSB
for the year ended December 31, 1996.
(2)  Incorporated by reference from the Company's Annual Report on Form 10-KSB
for the year ended December 31, 1993.
(3)  Incorporated by reference from the Company's Form S-3 Registration
Statement, Registration No. 333-25465 declared effective July 23, 1997.


Item 17.  Undertakings.

     The undersigned registrant hereby undertakes:
     (1)  To file, during any period in which offers or sales are being made,
a post-effective amendment to this registration statement to include any
material information with respect to the plan of distribution not previously
disclosed in the registration statement or any material change to such
information in the registration statement.
     (2)  That, for the purposes of determining any liability under the
Securities Act of 1933 (the "Act"), each such post-effective amendment shall
be deemed to be a new registration statement relating to the securities
offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.
     (3)  To remove from registration by means of a post-effective amendment
any of the securities being registered which remain unsold at the termination
of the offering.
     (4)  That, for purposes of determining liability under the Act, each
filing of the registrant's annual report pursuant to section 13(a) or section
15(d) of the Securities Exchange Act of 1934 (and where applicable, each
filing of an employee benefit plan's annual report pursuant to section 15(d)
of the Securities Exchange Act of 1934) that is incorporated by reference in
the registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.
     (5)  That, insofar as indemnification for liabilities arising under the
Act may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions, or otherwise, the Registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable.  In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a director, officer or controlling person of the
Registrant in the successful defense of any action, suit or proceeding) is
asserted by such director, officer or controlling person in connection with
the securities being registered, the Registrant will, unless in the opinion of
its counsel the matter has been settled by controlling precedent, submit to a
court of appropriate jurisdiction the question whether such indemnification by
it is against public policy as expressed in the Act and will be governed by
the final adjudication of such issue.

                                       16
<PAGE>

SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended,
the Registrant hereby certifies that it has reasonable grounds to believe that
it meets all of the requirements for filing on Form S-3 and has duly caused
this Registration Statement and any amendment thereto to be signed on its
behalf by the undersigned, thereunto duly authorized, in the City of Golden,
State of Colorado on February 12, 1998

                              EARTH SCIENCES, INC.


Date:  February 12, 1998      /s/  Ramon E. Bisque
                              -----------------------------------------------
                              Ramon E. Bisque
                              Principal Executive Officer

Date: February 12, 1998       /s/  Mark H. McKinnies
                              -----------------------------------------------
                              Mark H. McKinnies
                              President, Principal Financial and
                              Accounting Officer

     Pursuant to the requirements of the Securities Exchange Act of 1933, as
amended, this Registration Statement and any amendment thereto has been signed
below by the following persons in the capacities and on the dates indicated.

Date: February 12, 1998       /s/  Ramon E. Bisque
                              ---------------------------------------------
                              Ramon E. Bisque, Director

Date: February 12, 1998       /s/  Duane N. Bloom
                              -----------------------------------------------
                              Duane N. Bloom, Director

Date: February 12, 1998       /s/  Michael D. Durham
                              -----------------------------------------------
                              Michael D. Durham, Director

Date: February 12, 1998       /s/  Robert H. Lowdermilk
                              -----------------------------------------------
                              Robert H. Lowdermilk, Director

Date: February 12, 1998       /s/  Mark H. McKinnies
                              -----------------------------------------------
                              Mark H. McKinnies, Director


                                       17
<PAGE>
Exhibit 5.1
                         Parcel, Mauro & Spaanstra, P.C.
                                Attorneys at Law
                                   Suite 3600
                             1801 California Street
                          Denver, Colorado  80202-2636
                            Telephone (303) 292-6400
                            Telecopier (303) 295-3040

February 12, 1998

Earth Sciences, Inc.
910 12th Street
Golden, Colorado  80401

Re:  Registration Statement on Form S-3
     Covering the Registration of 3,825,486
     Common Shares of Earth Sciences, Inc.

Gentlemen and Ladies:

     We have acted as counsel for Earth Sciences, Inc., a Colorado corporation
(the "Company"), in connection with the registration for sale of 3,825,486
shares of the Company's Common Stock (the "Securities") in accordance with the
registration provisions of the Securities Act of 1933, as amended.

     In such capacity we have examined, among other documents, the Articles of
Incorporation and By Laws of the Company, records of corporate proceedings,
the Registration Statement on Form S-3 filed by the Company with the
Securities and Exchange Commission on or about February 12, 1998, (as may be
further amended from time to time, the "Registration Statement"), covering the
registration of the Securities.  We have also made such other investigations
and reviewed such other documents as we have deemed necessary in order to
express the opinions set forth below.

     Based upon the foregoing and upon such further examinations as we have
deemed relevant and necessary, we are of the opinion that:

     1.   The Company is a corporation duly organized and validly existing
under the laws of the State of Colorado.

     2.   The Securities have been legally and validly authorized under the
Company's Articles of Incorporation, as amended, and constitute (or will
constitute upon due exercise of the convertible debentures as described in the
Registration Statement) duly and validly issued and outstanding and fully paid
and nonassessable shares of the Company under the Colorado Business
Corporation Act, assuming a minimum conversion price of $.75 per share for the
Company's debentures.

     We hereby consent to the use of our name beneath the caption "Legal
Matters" in the Prospectus forming a part of the Registration Statement and to
the filing of a copy of this opinion as Exhibit 5.1 thereto.

                         Very truly yours,

                         /s/ Parcel, Mauro & Spaanstra, P.C.
                              Parcel, Mauro & Spaanstra, P.C.


                                       18
<PAGE>
Exhibit 23.1

                          INDEPENDENT AUDITOR'S CONSENT

We consent to the incorporation by reference of our report dated February 3,
1997 accompanying the financial statements of Earth Sciences, Inc. to Form S-3
Registration Statement of Earth Sciences, Inc. and to the use of our name and
the statements with respect to us, as appearing under the heading "Experts" in
the Registration Statement.

/s/  Hein + Associates LLP
HEIN + ASSOCIATES

Denver, Colorado
February 11, 1998


                                       19
<PAGE>


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