Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
morning overcast, afternoon fairly good sun
Temperatures with glass probe thermometer by Ray Hillborn:
South Facing
Slope
9 AM 4 PM
27 35
17°c 21
North Facing
Slope
9 AM 4 PM
28 33
17½° 20½
Flat
9 AM 4 PM
28 30
17½° 18½
Touching
SURFACE (shield by body)
30 48
18½ 28½
31 43
19° 26°
31 35
19° 21°
JUST
SUBSURFACE
30 60
18½ 35½°
31 56
19 33°
32 50
19½ 30°
UNDER TILL-
ANDSIA ON
SURFACE
29 38
18° 23°
29 39
18° 24°
29 35
18 21°
OPEN GROUND
3" DOWN
31 43
19 26
30 45
18½ 27°
30 40
18½ 24°
OPEN GROUND
6" DOWN
31 31
19°c 19
31 33
19 20½
32 33
19½ 20½°C