REPORT OF THE CHEMIST 155 



SESSIONAL PAPER No. 16 



This would yield, on burning, practically 30 per cent of lime, and consequently, if 

 occurring in any quantity, would be valuable in those districts in which the soil needs 

 this element of plant food. 



It is found underlying muck, but the extent of the deposits in this district is not 

 known to the writer. 



Nova Scotia. — From Lower Settlement, South River, sent by ITr. James Dunn, 



p. c. 



Insoluble rock matter 18 "68 



Carbonate of lime 69 -46 



Organic matter, oxide of iron, &c. (undetermined) 11-86 



100 -00 



This is a marl of very fair quality and would prove a valuable source of lime foi 

 all soils requiring this element. On burning, it would yield about 39 per cent of lime. 



Limestone. 



Quehec. — From Stornaway, Compton county, sent by Mr. E. M. Campbell, who 

 writes : ' The soils of the farms in this vicinity would be greatly benefited by an appli- 

 cation of lime. We shall be glad to learn if lime for such a purpose could be obtained 

 by burning the rock, a sample of which I send you herewith.' 



p. c. 



Insoluble rock matter 86.03 



Carbonate of lime 3 -19 



Oxide of iron and alumina 9 "78 



Undetermined 1 "00 



100 -00 



It is quite evident from these figures that this rock is not limestone, and would b« 

 valueless for the purpose of making lime. 



From Labelle county*, sent by Hon. Wm. Owens, Montebello. There are many 

 stiff clay loams in this locality, which, it is presumed, would be improved, chemically 

 and mechanically, by an application of lime. The analysis of two specimens of ' lime- 

 Btone rock ' occurring in the district furnished the following results : — 



Light Specimen. Dark Specimen, 

 l'er cent. Per cent. 



Insoluble rock matter 29-70 36-20 



Carbonate of lime 60-75 54-55 



Oxide of iron and alumina 5 -40 5 -70 



Undetermined 4 "15 3 -55 



100 -00 100 -00 



There is no great difference in value between the samples. The ' light ' limestone 

 would yield, completely burned, 34 per cent lime ; the ' dark ' limestone, 30 per cent 

 lime. Though the resulting lime would be too poor for building purposes, it might be 

 used to advantage agriculturally. 



THOMAS' PHOSPHATE FLOUR (BASIC SLAG). 



Under several names, Gilchrist Thomas Slag, Basic Slag, Thomas' Phosphate 

 Flour, &c, a by-product of the Bessemer steel process, finds its way upon the market. 



