NV. T. Lupton—Meteoric Iron from Coahuila. 233 
ron, and to the fact that nitric acid failed to develop the so- 
called Widmannstittian figures on a surface carefully polished, 
I was led to doubt the statement of its origin. Since that time, 
Owever, my attention has been called to the article of Dr. 
Lawrence Smith on “Coahuila Meteorites of 1868” in this Jour- 
nal, vol. xlvii, page 383, and in his “‘ Scientific Researches,” page 
846, in which several similar masses are spoken of as having 
been brought to this country from near Santa Rosa. This in- 
duced me to analyze carefully a portion of the piece now in my 
Possession with the following results. 
Dr. Smith’s analysis of a specimen from one of the masses 
above mentioned yielded : 
ig 92-95 Cobalt....... 48 
<sce--- 6°62 Phosphorus... 02 
Copper, very minute quantity. 
The similarity of composition in connection with other cireum- 
stances convinces me that these are, in all probability, fragments 
of the Same meteorite. It is proper to state that r car 
*xamination I failed to find the least trace of copper. 
ceording to the account which Dr. Smith received from Dr. 
Butcher, a brilliant meteor passed over the town of Santa Rosa 
'n the fall of 1837 and was eee to explode with a tremendous 
Teport after its disappearance among the mountains toward the 
northwest. Search was made for it the next day by Dr. Long 
of Santa Rosa with a party of friends, but without success. 
Some years later, Dr. Butcher undertook the search, an interest- 
ing account of which is given in the article above referred to. 
._~r. Smith remarks that while it matters little whether the 
time Specified is that of the fall of these masses, nevertheless, 
. it forms one of the most interesting groupings of meteoric 
‘Tons known in any part of the world, especially as the masses 
are solid and compact, and not fragile and half stony, as the 
tacama iron, that may have been broken artificially after its 
fall, and the fragments scattered by Indians and explorers in 
Search of silver. Each one of these masses merits a separate 
®xamination, which I hope to be able to give sooner or later to 
isfy my mind on one or two points connected with their com- 
mon physical and chemical composition.” 
Dr. Smith’s description is applicable to the specimen in my 
Session, 
Vanderbilt University, Nashville, Teon. 
