G. P. Merrill — Minor Constituents of Meteorites. 515 



Dr. Whitfield's analyses were made on 50-gram samples, free 

 from evident inclusions of troilite. The following elements 

 were looked for but not found; antimony, tin, lead, palladium, 

 platinum, titanium, tungsten, vanadium, uranium, chromium, 

 manganese, molybdenum and zinc. 



(3) Iron. Mount Joy, Pennsylvania. Coarse octahedrite ; 

 brecciated. Previous analysis by Eakms - * yielded : 



Iron 93-80$ 



Nickel 4-81 



Cobalt 0-51 



Copper....... 0-005 



Phosphorus 0*19 



Sulphur _. 0-01 



99-325 



Further tests by Dr. Whitfield on a 50-gram sample yielded : 



Chromium - 0*006$ 



Manganese 0*075 



Copper 0-008 



Chlorine. __ 0-255 



Platinum _ trace 



No vanadium, molybdenum, tungsten, gold, silver, lead or tin, 

 nor in fact any other element in amounts large enough to be 

 determined by wet analysis, were found. 



(4) Iron. Perryville, Missouri. Described by Merrillf as 

 belonging to Brezina's group of finest octahedrites (Off.). As 

 the entire iron was in possession of the National Museum and 

 it had not before been described, all the necessary material 

 was sacrificed for a very detailed analysis, with the results tab- 

 ulated below: 



Iron (by difference) 89-015$ 



Nickel 9-660 



Cobalt 0-545 



Copper.. 0-025 



Manganese _. none 



Phosphorus 0*365 



Sulphur 0-002 



Silicon 0-003 



Carbon 0*015 



Iridium "] 

 Palladium ! 



Platinum \ traces 



Ruthenium J 



99*63 



* This Journal, xliv, 416, 1892. 



f Proc. U. S. Nat. Mus., xliii, pp. 595-97, No. 1943, 1912. 



