Mineralogy and Geology. 427 
4, Brief Report of J. D. Whitney, State Geologist of California, on 
the progress of the Geological Survey, to his Excellency Leland Stanford, 
Governor of the State, dated, Office of the Geological Survey, San 
rancisco, Nov, 26, 1863.— i 
t closing. I will, 
therefore, only attempt to set forth, as briefly as possible, the plan which 
on the relations of the Geological Survey to the interests of the State, 
our labors during the season which is now closing have been directed to 
that great chain of mountains, especially of that portion which lies 
Operate to any advantage, or without considerable risk. 
The organization of the corps has remained nearly the same as last year ; 
but the smallness of the appropriation made by the last Legislature has 
had its effect in cutting down the survey to some extent. Prof. Brewer 
has been employed as Assistant Geologist and Botanist, and has been 
d 
plored in completing the map of the vicinity of the Bay of San Francisco, 
in the field and office. The field work is now complete, and the 
toward a map of the central portion of the Sierra Nevada. From Wack- 
&hreuder, a we have ad no assistance, as he has been engaged in 
the service of the United States. The maps commenced by him last 
“remain in the same condition which they were in at the date of my 
tas year’ 8 synopsis, Ke 
