50 PROCEEDINGS OF THE CALIFORNIA 



" At the Hacienda de Conception, on the road from Chihuahua to Rio Flo" 

 rida," a mass of meteoric iron estimated to weigh 3,853 lbs. — Bartlett. The 

 exact locality of this hacienda I have not been able to ascertain. 



" Ninety miles north-west of Santa Rosa," supposed to be the Santa Rosa in 

 the province of Coahuila, in Mexico, lat. 28°, long. 101° 30' ; Ass't A. Schott, 

 of the Mexican Boundary Survey, reports a large number of masses of mete- 

 oric iron ; see page 34, Part II, of Major Emory's Report. This statement 

 needs confirmation. 



" Sancha Estate, some fifty or sixty miles from Santa Rosa, in the north of 

 Coahuila." This is the locality of the mass of meteoric iron, weighing 252 

 pounds, and now in the collection of the Smithsonian Institution, figured, de- 

 scribed and analyzed by Professor Smith ; see Smithsonian Report for 1855, p. 

 154, and Silliman's Journal, (2) XIX, 160. Professor Smith says, " various 

 accounts were given of the precise locality, but none seemed very satisfactory." 

 It is not unlikely that this mass is from the same locality mentioned by Mr. 

 Schott. 



" Near the South-western edge of the Balson de Mapimi, on the route to the 

 Mines of Parral, there is a meteorite, near the road, of not less than a ton 

 weight ;" on the authority of Mr. Weidner, of the mines of Freiberg, as stated 

 by Professor Smith (Smithsonian Report for 1855, page 155), Mapimi is in 

 Ion. 103° 30'; lat. 25° 45' nearly. 



"At the Hacienda of Venagas, there was (1827) a piece of iron that would 

 make a cylinder, one yard in length, with a diameter of ten inches." It was 

 said to have been brought from the mountains near the Hacienda." Professor 

 Smith, on the authority of Dr. Berlandier (Smithsonian Report for 1855, p. 

 155), makes the above statement; the exact locality of the Hacienda I have 

 been unable to ascertain ; it is probably nearly in lat. 24°, Ion. 101°. 



La Paz, New Mexico, near the Colorado River, about lat. 33° 30'. A mass 

 of meteoric iron, weighing 10 pounds, was brought from that locality, in 1862, 

 by Mr. H. Ehrenberg. 



A number of other localities of meteoric iron might be added from more 

 southern and central portions of Mexico ; but as that is a region to which the 

 attention of Californian explorers and capitalists has not yet been much directed, 

 it will not be necessary to cite them here. It is hoped that the circulation of 

 the above list may be the means of procuring further information in regard to 

 the masses of iron noticed ; and that, possibly, more of them may be brought 

 to San Francisco. 



Regular Meeting, August 3d, 1863. 



President in the Chair. 



Present, eleven members. 



F. M. Spence, of Victoria, V. I., was elected a Corresponding 

 Member. 



