SALUBRITY. 139 



to side of the houses and much broken, and men in the fields 

 were thrown down. 



On Sunday, October 8th, 1865, at 12.45 p. M., a severe shock 

 visited the coast valleys, from San Luis Obispo to Hurnboldt 

 Bay. In San Francisco, weak brick buildings were shattered, 

 cornices were thrown down, and several persons were seriously 

 injured by falling bricks, and by injuries received in jumping 

 out of windows. 



The earthquake which destroyed many towns and killed 

 many people in Peru, on the 13th of August, 1868, was not 

 felt in California, but its tidal waves were observed here the 

 next day. The sea ebbed and flowed in a remarkable manner 

 from San Francisco to San Diego, from daylight till dark, the 

 tides reaching heights not observed before, but doing no dam- 

 age. 



The severest earthquake observed in San Francisco since 

 1846, came on the 21st of October, 1868, about eight A. M. 

 A dozen brick buildings on made ground were shattered so as 

 to be untenantable, the cornices of two dozen were thrown 

 down, many walls were cracked, much window glass was 

 broken, and five persons were killed by falling bricks, and as 

 many more had bones broken by jumping out of windows. 



On the 26th of March, 1872, the southern part of the State 

 was shaken up, the shock being most severe in Owen Valley, 

 275 miles southeast of San Francisco, and beyond the Sierra 

 Nevada. Two hundred .buildings, most of them cheap struct- 

 ures of adobes, were thrown down, and thirty-five persons 

 were killed by the falling of the walls and roofs. Cracks 

 opened several feet wide, and then came together with so 

 much force that ridges were thrown up. Springs disappeared 

 in some places, and appeared in others. The level of Owen 

 Lake raised four feet, or the ground on one side seemed to 

 have sunk as much. 



