EAKTHQUAKES ON THE PACIFIC COAST 55 



1859. August; 



Big Valley, Lake County, Cal. — B. Ms. — S. F. Bulletin, September 3, 



1859. — The shocks were not felt a few miles off. (See 1856, De- 

 cember.) 



1859. September 9; 9:30 a. m. 



Two distinct shocks. Petaluma, Cal. — B. Ms. — Sacramento Union, 

 September 15, 1859. Slight shock, S. F., Cal. (IV?).— B. Ms. 



1859. September 22; a. m.; VI. 



Severe shock, S. F., Cal.— S. F. D. 



1859. September 24; 3 a. m.; IV. 



Slight shock at Half Moon Bay. — B. Ms. — Sacramento Union, Septem- 

 ber 28, 1859. Waters of the bay receded fifteen feet and returned 

 suddenly. 



1859. September 24; 5:45 a. m. 



San Francisco, Cal.— T. T. 



1859. September 2G; 6b. 10m.; V. 



Smart shock in San Francisco, Cal. — J. B. T. 



1859. October 5; 0:16 p. m.; VII. 



Severe shock at San Francisco, Cal.— T. T. 13h. 8m.; strong shock, 

 S. F., Cal. — J. B. T. — Perrey. — The severest since 1856, February 15. 



1859. October 18; 6 a. m. (See September 24). 



S. F.; at Half Moon Bay the water left the bay for several seconds. 

 — Perrey. 



18.59. November 19; 3 a. m.; IV. 



Slight shock, S. F., Cal. — B. Ms. — Sacramento Union, November 22, 



1859. 



1859. November 22; 



Mt. Baker in full activity. — ^Perrey. [?] 



1859. November 25; 



San Francisco, Cal. — Perrey. 



1859. November 27; evening. 



Two shocks, San Francisco, Cal. — Perrey. 



1859. November 27; 19h. 15m.; IV. 



A light shock in San Francisco, Cal. — J. B. T. 



1859. December 1; Ob. 50m.; V. 



Smart shock in San Francisco, Cal. Felt at Oakland and Benicia. — 

 J. B. T.— Perrey. 



