254 



PROCEEDINGS OP THE AMERICAN ACADEMY. 



No analyses have been made of the meteorites of Waldron's Ridge,* 

 Claiborne Co., and Lebanon,f Wilson Co., Tennessee, but they are 

 generally accepted as identical with the Cocke County iron. 



Of the above analyses the Greenbrier County is probably the most 

 reliable, and this it will be seen is almost identical with the Smithville. 

 The analysis of Jennie's Creek is of very little account, since it consists 

 of a determination of the percentage of the iron alone, the balance in 

 weight being set down as nickel and cobalt, while the analyses of the 

 Cocke County and Sevier County, unquestionably the same iron, differ 

 widely from each other. 



In marked contrast to this variation is a collection of analyses 

 placed in comparison by Fletcher, when describing the Greenbrier 

 County specimen now in the British Museum. $ 



On glancing at the above table one would suppose that it exhibited 

 parallel analyses of the same iron, whereas they are actually irons so 

 widely separated by their physical characters as well as by their 

 geographical distribution that in our present knowledge of the subject 

 we are forced to regard the resemblance of the chemical analyses as 

 an accidental coincidence. 



Although a mere chemical analysis seemed insufficient to identify 

 the Smithville iron with the Cocke County, or Sevier County iron, oue 

 point in its composition seemed important. After dissolving a portion 



* American Journal of Science, 3d ser., Vol. XXXIV. p. 475, 1887. 



t Ibid , Vol XXXIII. p. 118, 1887. 



t Mineralogical Magazine, Vol. VII. p. 183, 1887. 



