No. 1.] GEOLOGICAL SURVEY OP CANADA. 87 



stated, contained 52.0 per cent, of magnetic grains. These were 

 analyzed separately (II), while the non magnetic portion gave me 

 the results under III. Sulphur and phosphorus are present in 

 this sand in very small quantities, the determinations of Mr. 

 Broome giving for the washed mixed ore 0.70 per cent, of sulphu r 

 and .007 of phosphorus. 



II. III. 1 A. 



Protoxyd of iron 85.79 56.38 71.08 



Titanic acid 4.15 28.95 16,55 



Oxj'd of manganese 40 1.10 .... 



Lime 90 .95 



Insoluble 1.95 8.75 5,35 



93.19 96.19 



Magnetic oxyd of iron. . . 92.68 .... .... 



Metallic iron 66,73 43.85 55.27 



The sum of the analysis II, if the iron be calculated as mag- 

 netic oxyd, is 100,08. The composition of the mixed ore, if we 

 suppose II and III to be mixed in equal proportions, would be 

 as under lA, which agrees closely with the analysis I, given 

 above. 



Bersimls. — The iron sand of Bersimis, as already described, 

 contained but 34.7 per cent, of magnetic grains; the analysis of 

 this portion is given under IV. 



IV. 



Protoxyd of iron 85.56 



Titanic acid 3,40 



Oxyd of manganese undet. 



Lime traces. 



Magnesia 



Insoluble 3.85 



92.81 



Magnetic oxj'-d of iron 92.44 



Metallic iron 66.56 



The sum of the analysis, if the iron be calculated as magnetic 

 oxyd, is 99,67, The non-magnetic portion of the Bcrismis sand 

 was dissolved in hydrochloric acid, out of contact with oxygen, 

 and the amounts of protoxyd and peroxyd of iron were separately 

 determined. The analysis gave me as follows : 



