452 



Dll. W. FLIGHT, GREENLAND METEORITES. 



sitioii of "tlie organic matter in the meteorite," through the 

 ivducing action of those compounds on the oxide of iron associated 

 with them. When such iron is treated with mercury- chloride 

 but little gas is evolved ; in aqua-regia it dissolves, leaving in some 

 cases a carbonaceous residue, in others very little residue of any 

 kind ; by the action of hydrochloric acid a gas is given olF which 

 has a penetrating odour resembling that of some hydrocarbon. 

 By treatment with acid a humus-like compound appears to be 

 generated, which is soluble in ammonia, insoluble in acid, and can 

 be oxidized only with difficulty by long boiling with very strong 

 acids. 



In Nordenskj old's paper are given the earliest analyses of these 

 irons : 



I. Fragment of one of the large iron masses : this specimen 

 evolved more gas than II. and III. Specific gravity=5-86 — 

 6*36. Analysed by Nordenskj old. II. Fragment of iron, more 

 compact and less crystalline than I., probably from the basalt 

 ridge. Small grains were observed to be malleable. The speci- 

 men from which this was taken subsequently crumbled away. 

 Specific gravity=7'05 — 7*06. Analysed by T. Nordstrom. 

 III. Fragment of iron from the basalt ridge, wliich exhibited 

 well-marked Widmanstattian figures. In external appearance 

 this iron exactly resembled II. Specific gravity =6 '24. Analysed 

 by G. Lindstrom. See above, p. 443. 









I. 



II. 





III. 



Iron 



. 



- 



84-49 



86-34 





93-24 



Nickel - 



- 



- 



2-48 



1-64 





1-24 



Cobalt - 



>• 



- 



0-07 



0-35 





0-56 



Copper - 



- 



- 



0-27 



0-19 





0-19 



Phosphorus 



- 



- 



0-20 



0-07 





0-03 



Sulphur - 



- 



- 



1-52 



0-22 





1-21 



Chlorine - 



- 



- 



0-72 



1-16 





0-16 



Alumina - 



- 



- 



trace 



0-24 





— 



Lime 



. 



- 



trace 



0-48 





__« 



Magnesia 



- 



- 



0-04 



0-29 





trace 



Potash - 



- 



- 



trace 



0'07 





0-08 



Soda 



- 



- 



trace 



0-14 





0-12 



Silicic acid 



- 



- 



trace 



0-66 





jo-59 



Insoluble portion 



- 



0-05 



4-37 





Carbon, Organic Matter 

 Oxygen, and Water 



'} 



10-16 



3-71 1 



Carbon 

 Hydrogen 



2-30 

 0-07 



100-00 99-93 99-79 



Nordstrom analysed the carbonaceous residue of the compact iron 

 II., after digestion v/ith double chloride of copper and sodium, and 

 iron chloride, and found, when a quantity of ash is deducted, that 

 it is composed of : 



Carbon - - 63-59 - - 63-64 



Hydrogen - - 3*26 - - 3-55 



Oxygen (by difference) 33-15 - - 32-81 



lOU-00 



100-00 



