336 



G, P. Merrill — Meteoric Iron from Texas. 



water, the solution acidified and precipitated with ammo- 

 nia, ignited and fused with sodium carbonate and potas- 

 sium nitrate and leached with hot water. Only a doubtful 

 and exceedingly faint trace of chromium was found. 



The chloride solution of the entire 13.36 grams was 

 precipitated with hydrogen sulphide, the precipitate being 



Fig. 1. 



Fig. 1. — Meteoric Iron, Odessa, Texas. Natural size. 



examined for copper and platinum. No platinum could 

 be detected. The copper was thoroughly proven. The 

 solution, after removal of hydrogen sulphide, was made 

 up to 1 liter and portions of 50 cc. (.6679 gm.) were used 

 for determination of ir.on, nickel, phosphorus and man- 

 ganese, also soluble chromium. No manganese could be 

 detected by the colorimetric method, nor could any soluble 

 chromium be found. Cobalt was determined by the nitro- 



