10 



E. J. CHAPMAN ON S0MJ5 



I. — Macjnetic Ores, Free ok Practically Free from Titanium. 



No. 1. A iiue-grained, maguetic ore, from the Howland Miue, lot 26, concession 4, 

 township of Snowdon. The ore near the surface is A'ery pyritons. birt becomes almost free 

 from pyrites in descending. The sample was taken from a depth of eighty-one feet from 

 the surface. A second shaft has been sunk on another part of the deposit to a depth of 

 about thirty feet. The amount of metallic iron, in the sample analysed, corresponds to 

 G1.48 per cent. The siliceoirs rock-matter is essentially pyroxene mixed with a little quartz. 

 The amount found in the analysis consisted of: SiO" 7.71, AFO' 0.2-3, FeO 0.72, CaO 3.67, 

 MgO 2.69=15.02. The deposit is apparently an elongated stock-formed mass of large 

 extent. It has been opened over a length of about eighty feet. 



No. 2. A black, magnetic, fine-grained ore, somewhat porous in texture, from the 

 Victoria Mine on lot 20, concession 1, town.ship of Snowdon. The deposit is apparently 

 a stock-formed mass of large size, as shown by recent borings and excavations. The erection 

 of a 30-ton charcoal furnace has been commenced on the ground. The analysis, as given 

 in the table above, shows a deficiency of nearly one per cent. This is due in chief part to 

 the omission of 0.73 per cent, titanic acid, found in the analysis. An amount of 0.42 soluble 

 alumina has been added to the rock matter in order to simplify the table. The amount of 

 metallic iron equals 60.18 per cent. In other analyses, the percentage has been found to 



