\ lHE FOUNDATION FOR
dco~OMIC EDUCATION, INC.
\ i RVINGTON-ON-HUDSON, NEW YORK
December 22, 1965
When you come back in January you
might start work on these books,
ordering copies of as many as you can
that are in print . The out of print
items we will have to wait for. ·
A few notations as to ~ditions avail
able, contributed by Opitz, have been
added. Generally speaking, I would
think that paperbacks were sturdy
enough for our use, unless...