John Trask

Report on the Geology of Northern and Southern California, embracing the mineral and agricultural resources of those sections: with statistics of the northern, southern and middle mines.

Report on the Geology of Northern and Southern California, embracing the mineral and agricultural resources of those sections: with statistics of the northern, southern and middle mines.

Report on the Geology of Northern and Southern California, embracing the mineral and agricultural resources of those sections: with statistics of the northern, southern and middle mines.

Report on the Geology of the Coast Mountains and part of the Sierra Nevada: embracing their industrial resources in agriculture and mining.

Report on the Geology of the Coast Mountains and part of the Sierra Nevada: embracing their industrial resources in agriculture and mining.

Report on the Geology of the Coast Mountains and part of the Sierra Nevada: embracing their industrial resources in agriculture and mining.