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PROSPECTUS SUPPLEMENT File No.333-52703
(To Prospectus Dated July 8, 1998) Filed Pursuant to Rule 424(b)(3)
JMAR TECHNOLOGIES, INC.
COMMON STOCK
This Prospectus Supplement supplements the Prospectus dated July 8,
1998 relating to the prior registration of the public offering by certain
shareholders of a total of 1,278,271 shares of Common Stock of the Company.
SELLING STOCKHOLDERS
The information set forth under the caption "Selling Stockholders" in
the Prospectus is supplemented to reflect the substitution of Bamboo
Investments, Ltd. in place of Baytree Associates Incorporated as follows:
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<CAPTION>
Number of Percent of
Number of Percent Shares Shares
Shares of of Shares Number Remaining if Outstanding if
Common Stock of Common of Shares All Shares All Shares
Beneficially Stock Being Registered Registered Are
Name and Address Owned Outstanding Registered Are Sold Sold
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<S> <C> <C> <C> <C> <C>
Bamboo Investments, Ltd. (1)
c/o Matheson Trust Company
(BVI) Limited
Road Town, Tortola
British Virgin Islands 377,660 2.06% 16,160 361,500 2.06%
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(1) All shares are issuable upon exercise of presently exercisable options and
warrants.
The date of this Prospectus Supplement is October 30, 1998.
