looking for books

it has been quite a while since i have been here... perhaps someone
can help.
I have nearly complete my isaac asimov book collection.

I am looking for:
Ginn Science Program, Advanced Level B; Gallant, Asimov; Ginn; 1973
Biochemestry and Human metabolism, third revised edition; williams and
wilkins; 1957

please do not tell me to look in the various on-line sources such as
abebooks.com. i look in bookfinder.com and addall.com on a daily
basis.
I am also not interested in the "print on demand" reprint of
_biochemistry_

if any of you have either of these, i am willing to buy the books
outright, or trade for some of greater value. for example, i have
extra copies of both the first two editions of _Biochemistry_ and will
trade both for a copy of the third.
State what you need, and i will consider almost any trade.

please contact me either by responding to this message or at (remove
xx's) xxe4e5xx.TakeThisOut@direcway.com