academy of science] METE0 RIC IRON, OWENS VALLEY, CALIF.— MERRILL. 7 



These values, recalculated on the basis of the original sample, show the following: 



HC1 soluble part: Percent. Percent 



Iron 89. 89 



Nickel 7. 65 



Cobalt 0. 45 



Sulphur 0. 122 



Phosphorus , 0. 007 



Copper Trace. 



Total 98. 119 



Residue from HC1 treatment: 



Iron 1. 05 



Nickel 0. 572 



Cobalt 0. 012 



Phosphorus 0. 248 



Silica 0. 003 



Platinum Trace. 



Iridium Trace. 



Total 1. 885 



Separated material: 



Combined carbon 0. 019 



Graphitic carbon 0. 013 



Total 0. 032 



Total 100. 036 



The results given above need little discussion other than to say that they corroborate fully 

 what I have previously written with particular reference to the minor constituents in meteor- 

 ites, 3 and incidentally substantiate the work of Doctor Whitfield. It may be well to note that 

 platinum was found only in the insoluble portion, and that it showed traces of iridium as did 

 that found by Mingaye in the iron of Mount Dyrring, Australia. No traces of palladium, 

 osmium, rhodium, or ruthenium were detected, however, nor of gold or tin. It is well to state 

 here that having still in mind Derby's determination of tin in the Canon Diablo meteorite, and 

 my failure to corroborate him, as noted in a recent paper, 4 I took advantage of the present 

 opportunity to make still another separation of the insoluble constituent of this much discussed 

 iron, 20 grams of which were referred to Professor Brinkley who reported: "The Canon Diablo 

 sample to be tested gave no evidence at all of the presence of tin." 



It is with a feeling of no little satisfaction that the careful work of so efficient an analyst 

 as Professor Brinkley is found to corroborate that of Whitfield and others as published in my 

 previous papers. 



> Amer. Journ. Sci., vol. 35, 1913, pp. 509-525; Mem. Nat. Acad. Sci., vol. 14, 1916, pp. 7-29; Proc. Nat. Acad. Sol., vol. 418, 19, pp. 175-180. 

 « Proc. Nat. Acad. Sci., vol. 4, 1918, p. 177. 



o 



