May, 1902. Meteorite Studies, I — Farrington. 315 



This corresponds nearly to the formula Fe 13 Ni., the percent- 

 ages for such a compound being: 



Fe 80.5 



Ni and Co 19.5 



100.00 



Other analysts have obtained for the percentages of iron in taen- 

 ite from other meteorites, values ranging from 86.44% to 57- x ^%» an d 

 corresponding to formulas varying from Fe 6 Ni to Fe 4 Ni„. Judg- 

 ing from our present knowledge of alloys it is hardly to be expected 

 that taenite should have a uniform composition. Kamacite, being the 

 substance with the lowest freezing point, is to be considered the 

 eutectic of the series and as such has a fairly uniform composition, 

 but this would not be expected of the other alloy or alloys. 



