56 SOUTHERN CALIFORNIA GEOLOGY 



Los Angeles, Oct. 26, 1927. 

 Dr. W. Bowie, 



U. S. Coast and Geodetic Survey, 

 Washington, D. C. 



Please wire me a night letter stating time and 

 amount of movement of Gaviota Peak and other local- 

 ities along San Andreas Rift and how far determina- 

 tions are dependable. Regards. 



Robert T. Hill. 

 1927, Oct. 27, PM 3 53 

 Washington, D. C, Oct. 27. 

 Robert T. Hill, 

 Los Angeles, Calif. 



Readjusting old work strengthened by the Laplace 

 azimuth shows less movement than preliminary re- 

 sults indicated. Gaviota five feet southeast old posi- 

 tion, but other stations in vicinity show changes to 

 southward varying from two to six feet. Owing to 

 great length of arc involved no definite indication earth 

 movement south of Mount Toro. Letter follows. 



Faris, 

 Acting Director Coast and Geodetic Survey. 



The subject matter of the response was unexpectedly 

 astounding. Instead of confirming a movement of 

 Gaviota Peak of "twenty-four feet to the north in 

 thirty years," such as constituted the foundation of 

 Willis's theory of the accumulation of great pressure, 

 whereby Southern California and Los Angeles were to 

 be endangered, it showed that the movement had not 

 been over five feet and was in an opposite direction. 

 It also showed that there were no definite evidences of 

 movement in Southern California at all! 



