144 Soils of the Far ^Vt8t. 



out irrigation, and to lima beans, Avalnuts, and deciduous and 

 citrus fruits when irrigated. Well drained and free from alkali 

 salts. 



1 J 



Soil (2) 2 16 



Subsoil (3) 1 14 



Acres. 



San Jose, Cal 25,920 



Ventura, Cal 5, 320 



SOILS ASSOCIATED WITH THE OXNARD SERIES. 



Salinas shale loam. — Very light, chalklike loam, 5 to 6 feet in 

 depth, grading into loam of texture of Oxnard loam. Light, fria- 

 ble, and easily cultivated; sometimes contains large percentage of 

 light siliceous gravel, derived from the beds of bituminous shale 

 of Miocene age. Occurs on level, gently sloping plains near 

 mountains. Always well drained and free from alkali. Adapted 

 to Lady Washington and black-eyed beans and barley. 



1 •_» 3 4 

 Soil (3) 4 21 51 20 



Acres. 



Lower Salinas Valley, Cal 13, 730 



Ventura, Cal 2,544 



Fullerton sandy adobe. —Brown sandy adobe to a depth of 5 feet, 

 underlain by compact sand or sandstone. Residual material de- 

 rived from weathering of underlying shaly sandstone. Foothills 

 extending down into level valley lands. Dry farmed to wheat, 

 and when irrigated used to some extent for citrus fruits. 



1 !> 3 4 



Soil (3) 4 3t) 30 22 



Subsoil (2) 2 40 36 20 



Acres. 



Los Angeles, Cal 7,040 



Santa Ana, Cal 31,334 



Ventura, Cal 1, 940 



BILLINGS SERIES. 



The soils of the Billings series are derived from the disintegra- 

 tion of sandstone and shale. 



Billings gravelly loam. — A sandy loam to 18 inches deep, under- 

 lain by loam or light clay loam 3 feet deep, both containing gravel, 



