386 J, L. Smith on two Meteorites. 
As it is a well authenticated meteorite, it is proper to make a 
record of it. Its specific gravity is 7-901, and it is composed of— 
Iron, - - : - - - - - 93°61 He 
Nickel, : - - - - - - 6°01 
Cobalt, . - - 
‘ e x * 73 
Copper, - : - very minute, not estimated. 
Phosphorus, - - - - - - 13 
100°48 
There was a very small quantity of manganese, that has been 
estimated along with the nickel. 
The new Alacama Meteorite. 
A fragment of the meteorite lately described by Prof. Joy, 
(this Journal, March, 1864, p. 243,) has been sent to me by 
Prof. C. F. Chandler, z 
nity of carefully examining it. I had at first supposed that it 
might be in some way related to the well known Atacama iron; 
was said to have been found in the Janacera pass. 
The meteorite from Sierra de Chaco was, at the time it was 
described, unique in its physical characteristics; the close resem- 
blance to it, therefore, of the one under notice, and its coming 
from Atacama has induced me to investigate as far as possible 
the relative position of Sierra de Chaco and Janacera pass. 
The best authority on the geography of Chili in this country, 
is doubtless Capt. Gilliss, of the U. S. Observatory at Washing- 
ton; in answer to my enquiries on the subject, he gives the fol- 
lowing information : ; 
_“T do not know any po in Chili named Janacera; there 18 
a river Jarquera, which has its origin near one of the passes ID 
Atacama, and very probably there may be a pass of the same 
mame. The river Jarquera is to the northward and eastwar 
of Chaco, the former being within the chain of the Andes, and 
Chaco most probably is in the western or coast range. 1hey 
are from 120 to 150 miles apart.” : 
As it is important to locate this meteorite correctly, I have 
"written to Prof. Domeyko on the subject. The village of Chaco 
is situated near latitude 25° 20’S., and longitude 69° 20’ W- 
‘om Greenwich ; and its height above the sea is 8,778 feet. _ 
ire 
