186 • EXPERIMENTAL FARMS 



2 GEORGE V.,. A. 1912 



A sample sent from Victoria, B.C., had the following composition : — 



Carbonate of lime 80-47 per cent. 



Oxide of iron and alumina -70 



Mineral matter insoluble in acid 18-51 " 



Undetermined (by difference) -32 " 



100-00 " 



The somewhat large amount of insoluble rock matter present renders this a lime- 

 stone of fair quality only. 



LIME. 



The following data were obtained on a sample of lime being used in Wolfville, 

 N.S., in the manufacture of Lime-sulphur wash : — 



Lime (CaO) 96-50 per cent. 



Magnesia (MgO) very slight traces 



Mineral matter insoluble in acid -91 " 



This lime had slightly carbonated, due to exposure to the air, but may be con- 

 sidered a good sample and one quite suitable for the purpose specified. 



REFUSE LIME FROM BEET SUGAR FACTORY. 



This sample of waste lime, used in the purification of sugar, was forwarded from 

 Wallaceburg, Ont. It was found to have the following composition: — 



Moisture 3-32 per cent. 



Carbonate of lime 82-32 " 



Oxide of iron, magnesia (by difference) 1-58 " 



Mineral matter insoluble in acid 



Organic and volatile matter 12-78 " 



100-00 " 



Nitrogen -35 " 



Practically, this refuse is carbonate of lime with some 12 per cent of organic 

 matter extracted from the beet juice in the purification process. It would prove of 

 value for all soils deficient in lime, as well as for those that are sour and ill-drained. 

 It contains a small amount of nitrogen, which would be of some agricultural value, 

 but for practical purposes this refuse could only be considered as an amendment equal 

 in merit to marl of good quality. 



