322 J. Lawrence Smith on Meteorites. 
Arr. XXXIII.—Memoir on Meteorites—A Description of five 
new Meteoric Irons, with some theoretical considerations on 
the origin of Meteorites based on their Physical and Chem- 
ical characters; by J. Lawrence Smitu, M.D., Professor of 
Chemistry in the Medical Department of the University of 
le. 
Louisvi 
(Read before the American Association for the Ad t of Science, April, 1854.) 
(Continued from p. 163.) 
Some Theoretical considerations connected with Meteorites. 
Unver this head no mention will be made of the phenomena 
accompanying the fall of meteorites, as their light, noise, burst- 
ing, and their black coating ; which arise after the bodies have 
entered the atmosphere, and are brought about by its agency. 
This omission will affect in io way the theoretical views under 
consideration, and the introduction of these particulars would 
uselessly increase the length of this memoir. 
The lessons to be learned from meteorites, both stony and mge- 
assumption, we certainly have the proof, as far as we may ever 
expect to get it, that materials of other portions of the universe are 
