SCHEDULE 13D/A
NAME OF ISSUER: METRA BIOSYSTEMS
TITLE OF CLASS OF SECURITIES: COMMON STOCK
CUSIP NUMBER: 59114210
NAME, ADDRESS AND TELEPHONE NO: KURT AMUNDSON, 265 NORTH WHISMAN ROAD,
MOUNTAIN VIEW, CA 94043 PH: 415-903-9100
DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT: 6/30/98
1. NAME OF REPORTING PERSONS: IRS: ID NOS. OF ABOVE PERSON:
Thomas Mitchell Management Co., Inc. - 13-3589733
2. CHECK BOX IF A MEMBER OF A GROUP (B) x
3. SEC use only
4. Source of Funds 00
5. Check if Disclosure of Legal Proceedings is Require Pursuant to Items
2(d) or 2 (e) not sure - no proceedings.
6. Citizenship or Place of Organization - State of Delaware
7. Sole Voting Power -
8. Shared Voting Power - Thomas Mitchell Mgt. Co., Inc. - 95,200
9. Sole Dispositive Power - Thomas Mitchell Mgt. Co., Inc. - 95,200
10. Shared Dispositive Power
11. Aggregate Amount Beneficially Owned by Each Reporting Person 95,200
12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares
13. Percent of Class Represented by Amount in Row (11) 0.75%
14. Type of Reporting Person
MITCHELL & HENRY, INC.-IA
CUSIP NO: 59114210
SCHEDULE 13D/A
ITEM #1- METRA BIOSYSTEMS
ITEM #2-a- Thomas Mitchell Management Co., Inc.
b- POB 31
Lake Placid, NY 12946
C- Investment Advisor
D- During the last five years, Thomas Mitchell Management Co. has not
been convicted in a criminal proceeding .
E- During the last five years, Thomas Mitchell management Co. has not
been a party to a civil proceeding of a judicial or
administrative body of competent jurisdiction and as a result of
such proceeding was or is subject to a judgment, decree or final
order enjoining future violations of, or prohibiting or mandating
activities subject to, federal or state securities laws or
finding any violation with respect to such laws.
F- U.S.A.
ITEM #3- Cash from Advisory Accounts
ITEM #4- For Investment Purposes only.
ITEM #5a- 95,200/ 12,650,000 = 0.75%
b- Thomas Mitchell Management Co., Inc. shared dispositive power
and shared voting power.
c- 10,400 shares recently purchased in various lots through
NASDAQ and in negotiated transactions at prices from $2.06 -$2.40
per share.
d- not applicable
e- not applicable
ITEM #6- not applicable
ITEM #7- not applicable
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true,
complete and correct.
Date: July 14, 1998
Signature: Thomas S. Mitchell
