82 ROCHESTER ACADEMY OF SCIENCE. 



acters of the etched surface of this iron show much simiHarity to those 

 of the Bella Roca siderite. 



The analysis of the iron as made by Professor J. E. Whitfield, of 

 Philadelphia, gives: 



Iron, - - - 88,982 

 Nickel, - - 10,300 



The specific gravity is 7,725. 



This Cuernavaca mass seems to have lain perdu since its finding, 

 never having been described or analyzed. It has been claimed by 

 Brezina and others as belonging to the group of Toluca irons. No 

 one who has seen the mass in either its external or its internal 

 features could make this mistake. Moreover, as Fletcher has shown 

 (Mexican Meteorites, 1890, p. 79) Cuernavaca is far away, to the 

 southeast, from the Toluca or Xiquipuco district. The two irons are 

 as diverse in structure as they are distant in their localities. 



THE ARISPE METEORITE.* 



This most interesting siderite was found in the northeastern part 

 of the State of Sonora, Mexico, in 1898. After various vicissitudes of 

 rambling with changed owners, it became last year the property of 

 Mr. A. F. Wuensch, a mining engineer of wide reputation in the 

 western country, whose present residence is Denver, Colorado. Mr. 

 Wuensch had encountered it while on a professional tour in Sonora. 

 From this gentleman and a Denver newspaper of August 17 of the 

 present year, I gather the following notice of the mass. 



The meteorite was discovered first in 1898 by some Mexican 

 mescalleros in the mountain some fifteen miles northwest of Arispe, 

 Sonora. Finding the mass malleable and composed of a silver white 

 metal, they regarded it as some form of silver ore, and secreted it 

 near the place of its discovery until transportation for it could be 

 secured. Other parties, however, followed up the trail, found the 

 place of concealment and stole the supposed lump of silver. After 

 some time and some strife, personal and in the courts, the mass was 

 acquired by Senor Canizaris at Cucurpe in the Magdalena district. 

 This gentleman had a hole half an inch in diameter and two and one- 

 half inches deep drilled into it, to test its interior for precious metals. 

 When these drillings showed no value in either gold or silver, the 

 mass was laid aside. Its existence was subsequently referred to 



*This description of the Arispe meteorite was presented to Academy November 24, 1902. 



