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Philadelphia Nov. 8^th 1856.

Dear Sir,

Send any or all of the specim-
ens you mention to the Academy. We
would be very glad to receive any of them,
and will make a fair return in publi-
cations. The Prairie Farmer, we would
not want, as it does not contain any
thing in our line, though a valuable
work to agriculturists.

With regard to your insects. Send Hymenop-
tera, Diptera, & Neuroptera to Prof. Baird. Friends
of ours are engaged in studying those orders,
& Baird will see to the distribution. It is
not necessary to pin them, if the alcohol be
sufficiently strong, or if the specimens are
packed in small boxes (seidlitz powder
boxes do very well) between layers of
soft tissue paper; not being too dry when
packed, as they will then break.

No one here studies spiders. Leidy