ee OO Se ee a ge 
fee” AY ee Pe ee eet 
Mineralogy and Geology. ‘121 
often to engage in expensive mining operations to decide what was real 
of permanent value. It is our task, rather, to limit the field of research, 
try of the Pacific Coast. Considerable work has been done, preliminary 
to a full report on the geology, mineralogy, and metallurgy of the 
as. n. 
In the department of botany and agricultural geology, the work has 
thus far been chiefly confined to collecting the plants of the State. 
Extensive duplicate suites have been preserved, both for study and for 
exchange, the specimens now collected amounting to not less than twelve 
thousand or fifteen thousand in number, and embracing probably half of 
the species described from the State, besides many new an 
scribed ones. The collections have been made by Professor Brewer while 
engaged in geological explorations, at a very trifling expenditure of time 
and money... 
limited means. Partial preparation was made for investigating the sub- 
ject of grape culture, and the production of wines; but discontinued 
tom the same cause. Especial attention has been paid to our native 
g | : 
crease of forage in this State, and correspondence entered into to obtain 
In the zoological department—in charge of Dr. J. G. Cooper, who has 
been employed about half the time since the Survey was commenced— 
the annexed table gives a succinct idea of what has been accomplished, 
up to the close of the year 1862, in the way of collecting. 
ey : 
= on es 23 ‘ nice Sha 
SS | 25 | 42 | S32 | 86 (283 
38 re rad H yee Sos 60 i 233 
bee | Sta | gs | O83 | 273 | B2e. 
en = . ao 2°22 
#02 | $52 | Fe | sco | ase | esce 
538 see gos 5S5 B= 5233 
32 10 38 45 47 14 
170 28 4(?)} 150 320 141 
6 9 45 0 
16 16 16 133 | 0 
335 128 123 65 400 | 0(%) 
Sci.—Seconp Series, Vou. XXXVI, No. 106.—Juny, 1863. 
16 
