Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
Hooper,
1937
Berkeley, Alameda Co., Calif.
Mar. 7,
1 Peromyscus maniculatus. It was discarded after setting out traps here we drove back toward Martinez to the locality [illegible].
Antioch
5 Norton, 100 ft., Contra Costa Co. Here I set out 48 mouse traps in wheat stubble along a stream running thru the field.
Ground squirrels were heard calling and numerous burrows noted. Found this morning: 21 Peromyscus maniculatus (10♂, 10♀). Saved 3 females and 2 males.
I forgot to mention that sheep were grazing over the hillside where the first group of traps were set. Most of the traps were sprung.
Returned to Berkeley this A.M. via Somersville, Nortonville and Walnut Cr.
Mar. 10, 1937
While up in the Berkeley Hills yesterday looking for a suitable area for the Zoo. 1/3 Microtus study, Fred Test and I found 1 Gerhonotus and several Batrachosaps under pine logs in grass at the top of Dwight Way Hill. The lizard was partly hidden by the bark of the log was cold, sluggish and seeming in a state of semitorpor.