1908] Grinnell_—Biota of the San Bernardino Mountains. 13} 
catcher, slender-billed nuthatch, ashy kinglet, western bluebird, 
Cassin purple finch, olive-sided flycatcher, calhope hamminebird, 
golden eagle, Cabanis woodpecker, Williamson sapsucker, Clarke 
nuteracker, Sierra junco, Audubon warbler, western wood pewee, 
Pacific nighthawk, and Sierra creeper. In the tongue of Transi- 
tion on the north side of the lake, there were noted, in addition to 
many of the above, green-tailed towhees, Stephens fox sparrows, 
and western robins. The western red-tailed hawk, rock wren, 
and red-shafted flicker were also noted in the near vicinity, as 
well as a few other birds undoubtedly out of their breeding range. 
Among mammals the two chipmunks (Hutamias speciosus and 
Callospermophilus bernardinus) were abundant; and workings 
of moles (Scapanus latimanus?) and meadow mice (Microtus 
mordax bernardinus) were seen. Gophers (Thomomys alti- 
vallis) were common about the little clenaga on the north bank 
of the lake. Although snowbanks remained in shady places 
around the lake until the end of June, we found the days decid- 
edly warm, and the nights not uncomfortably cool, in fact not 
nearly so chilly as 3000 feet lower, on the Santa Ana, at the 
same season. (See pls. 3a, 7, 9.) 
Donuar LAKE. 
Dollar lake is a much smaller body of water than Dry lake. 
As its basin is small and situated at the foot of a steep moun- 
tain wall, down which talus material is constantly sliding, it 
looks as though its existence will come to an end before long. 
Dollar lake is in the right-hand head of the South Fork at 9200 
feet altitude, and about two miles in an air line due west of Dry 
lake. Its faunal surroundings are purely Boreal. 
SAN GORGONIO PEAK. 
San Gorgonio peak, or as it is more familiarly known in 
southern California, Graybaeck, is the highest point of the San 
Bernardino mountains, and in faet, of California south of the Mt. 
Whitney region in the southern Sierra Nevada. The elevation 
of San Gorgonio Peak, as given by the U. S. Geological Survey, 
is 11,485 feet above the sea. From it can be distinguished the 
San Pedro Martir mountains of Lower California, the San Fran- 
