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raise part of it by subscription, and I propose to ask for aid from the Society of American Naturalists I enclose circular and subscription paper. The money will not be called for before April '92, and will not be called for at all unless a sufficient guarantee is obtained.
An early answer is very necessary!
Yours very truly

Edw. D. Cope

Prof. Chas. E. Bessey

Lincoln

Nebr.