﻿180 



Canadian Record of Science. 



It contained Cu, 24.64 



Ni, 22.86 

 Fe, 26.70 

 S, 25.82 



The analyses are for convenience written in their 

 respective locations. 



The specific gravity of matte at the point A was 5.26 

 and at B was 5.2. The solid arrows in the sketch indicate 

 the movement of nickel, while the dotted arrows show the 

 movement of copper. Examining these lines carefully, it 

 will be seen that the segregation of nickel to the centre and 

 the dispersion of copper to the outside is very pronounced, 

 variations in the percentage of these two ingredients 

 Fig. 3. to the amount 



/-?." i. of? per cent, 



occurring over 

 a space of 

 three or four 

 inches. It will 

 also be noticed 

 that copper 

 and nickel 

 seem to be 

 mutually an- 

 tagonistic, an 

 inward flow of 

 nickel being 

 almost always 

 accompanied 

 by an outflow 

 of copper. 



Taking the 

 vertical cen- 

 tral line and 

 the horizontal 



Section of quarter pot a little over one-third natural size. pp>,f^y,ol linP flS 



showing the tendencies of the metals at their greatest 

 fluidity, we may now map the variations in a curve. 



