Smiths.. r. Mr, R.p.Tt 1950.— Gutenberg 



PLATE 1 



Offsets of streams Along the San Andreas Fault at the Carrizo Plain, 

 Calif. (About 1191^° W., 35° N.) 



Directions of the streams from left to right. (Taken by the Fairchild Aerial 

 Survey, Los Angeles, for the Barnsdall Oil Co., in February 1936.) 



