yni NORTH AMERICAN MUSTELID^. 



tation. Specimens, after examination by the undersigned for the purposes 

 of the work in hand, will be deposited, in the name of the donor, in th« 

 Army Medical Museum, or in the National Museum. 



Printed instructions for collectiug and preserving specimens will be fur- 

 nished on application to the Smithsonian Institution. Medical Officers 

 receiving this Circular are requested to bring it to the notice of others who 

 may be interested in the matter, and are cordially invited to open corre- 

 spondeuce with the writer upon the subject. 



It is proper to add, that, for all information or specimens furnished, full 

 credit will be given in every instance, both in the text of the treatise in 

 which such material is utilized, and in the records and publications of the 

 Museum in which it is finally deposited ; and that the author will regard 

 cooperation m this work as a personal favor, to be fully appreciated and 

 gratefully acknowledged. 



ELLIOTT COUES, 

 Assistant Surgton, U. S. Army. 



