Philadelphia
1302 Fillnut St.
April 28, 1886
Dear Dr. Billings,
About a year ago you wrote to me proposing to send to me for identification some specimens of entozoa in the Army Medical Museum. If you will now at your convenience have the collection sent to the following address, at my leisure, I will examine the speciments and in due time report therein.
Sincerely yours,
Joseph Leidy
Address
Prof. Joseph Leidy
Biological Dept University of Pennsylvania
West Philadelphia
Philadelphia, Pa
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