The Mexican Chihuahua, being shown to a young visitor by Dr. Clarence Cook Little, director of the Roscoe B. Jackson Memorial Laboratory at Bar Harbor, is one of a group of dogs whose mental and social traits are receiving serious scientific study this summer.

Digital Commonwealth — Boston Public Library

The Mexican Chihuahua, being shown to a young visitor by Dr. Clarence Cook Little, director of the Roscoe B. Jackson Memorial Laboratory at Bar Harbor, is one of a group of dogs whose mental and social traits are receiving serious scientific study this summer.

[ca. June 1946]

RightsCC0 — Public Domain

CollectionDigital Commonwealth — Boston Public Library

[Information from item housing] Laboratories: Misc. Photos

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