684 E. W. PACK OIL FIELDS OF THE PACIFIC COAST 



ance already given by both the State and the Federal governments have 

 been of great service ; but there is room for more work than has as yet 

 been done. 



Eecent estimates of the amount of oil remaining available in the fields 

 now producing in California have shown that, large as the total quantity 

 is, it probably will not be sufficient to supply the needs of the next genera- 

 tion. As these fields appear to contain most of the available oil on the 

 Pacific coast, it behooves us to see that the extraction of this oil is thor- 

 ough and efficient. 



