Letter of the Day: May 2 - Smithsonian crania collection

Smithsonian Institution
Washington May 2, 1868

Dear Sir:

In compliance with the desire expressed by you to acquire some of the duplicate crania of the Smithsonian collection for the Army Medical Museum, I take much pleasure in transmitting the specimens mentioned in the accompanying invoice, and hope they will be found to constitute an important addition to the collection under your charge.

Very respectfully
Your obt servt

Joseph Henry
Secy, S.I.

Dr. Otis
Army Med. Mus.
Washn.