54 Cranclall — Santa Clara Valley Region in California. 



The Horsetown sea transgressed over northern California be- 

 yond the Knoxville shore line ; at Mt. Diablo it almost coin- 

 cided "with the Knoxville shore line, and in southern California 

 appears to be absent. 



The shore line of the Chico sea shows that when subsidence 

 took place that the southern end of California was relatively 

 higher than northern California, as was the condition of affairs 

 during the Horsetown period. 



Stanford University, California, Dec. 16, 1906. 



