"8 THE ROYAL SOCIETY OF CANADA 



The results of the general analysis are as follows: 



Fe 91.51 



Ni 7.84 



Co 0.46 



P 0.219 



S 0.012 



Cu .^. ... 0.08 



Si .'.... 0.002 



C- total 0.01 



Cr 0.001 



Mn Very minute trace 



Ti, V, Al, Sn Not detected 



Insol in HNO3 1.2 s. G 0.003 



100.12 

 S. G. of bar used for analysis 7 . 873 at 20 . 2°C in air. 



Separation and Analysis of the Constituents of the Iron 



It was soon observed that the ground mass of the iron Avas 

 attacked by acids much more readily than the other constituents 

 which, by repeated treatment, could be obtained finally as a residue 

 free from ground mass. Accordingly a 68 gram slice was treated 

 with successive portions of 10 per cent. HCl and a residue of about 

 2 grams obtained consisting of some undissolved ground mass along 

 with lamellae of 38% nickel iron alloy (PI. V, Figs. 1,2; PI. VI, 

 Figs. 3, 4; PI. VII, Figs. 5, 6, and analysis 2), irregular masses of 

 brittle fractured phosphide (PI. VIII, Figs. 7, 8; PI. X, Fig. 12), and 

 innumerable minute, brittle, long, slender crystals of phosphide 

 (PI. XI, Fig. 14; PI. XII, Fig. 15, 16; PI. XIII, Fig. 17). There was 

 also a very little black carbonaceous or graphitic matter. From this 

 residue, washed in alcohol and ether, samples of the various materials 

 were carefully selected under the binocular, quantities somewhat 

 exceeding one-tenth gram being obtained. 



The specific gravity of the specimens was determined in a 10 c.c. 

 silica pycnometer with graduated capillary tube stopper in which 

 weighings can be made and repeated with an accuracy of 0.1 mg. 

 All samples were boiled in vacuo until apparently free from air. The 

 temperature was measured to 1/50°C. by a standard thermometer 

 immediately following the last weighing. The results are probably 

 accurate to the first decimal. 



