PUBLICATIONS OF THE CALIFORNIA STATE MINING BUREAU-Continued.

Mineral and Relief Map of California_

El Dorado County, Showing Boundaries of National Forests.
Madera County, Showing Boundaries of National Forests_
Placer County, Showing Boundaries of National Forests_
Shasta County, Showing Boundaries of National Forests-
Sierra County, Showing Boundaries of National Forests.
Siskiyou County, Showing Boundaries of National Forests-
Trinity County, Showing Boundaries of National Forests.
Tuolumne County, Showing Boundaries of National Forests-
*Mother Lode Region

Desert Region of Southern California.
Minaret District, Madera County-

Copper Deposits in California.

Calaveras County

Plumas County

Tuolumne County

DETERMINATION OF MINERAL SAMPLES.

$1.50

.30

.50

.30

.25

.20

.20

.20

.20

.20

.20

.45

.20

.10

.20

.05

.25

.25

.25

Samples (limited to three at one time) of any mineral found in the State may be sent to the Bureau for identification, and the same will be classified free of charge. No samples will be determined if received from points outside the State. It must be understood that no Assays, or Quantitative Determinations will be made. Samples should be in lump form if possible, and marked plainly with name of sender on outside of package, etc. No samples will be received unless delivery charges are prepaid. A letter should accompany sample, giving locality where mineral was found and the nature of the information desired.

The following county maps show all towns, postoffices, railroads and stage lines and distances between points. They are especially valuable to all who wish to leave the railroad and penetrate to the interior of the mining districts of the State. These maps must not be reproduced without obtaining permission from the Mining Bureau.