U. S. GEOLOGICAL SURVEY BULLETIN 845 PLATE 36 
A. DRIFTING SANDS NEAR NORTH END OF SAND HILLS NEAR AMOS SIDING, 
CALIF. 
Chocolate Mountains in background. (Mendenhall.) 
B. SALTON SEA AND SALTON BASIN, CALIF. 
From point near Figtree John Spring, looking north to Orocopia and Cottonwood Mountains. 
(Mendenhall.) 
