50 THE CONNECTICUT AGRICULTUEAL 



Stance per ton: allowing for it, 100 pounds of potash in 775 cost 

 $6.77 and in 798 cost $6.45. 



The analyses show that the two brands " Double Sulphate of 

 Potash and Magnesia," and "Actual Sulphate of Potash," are 

 practically the same thing. 



In the high grade muriate, actual potash has cost at retail from 

 4 to 5^ cents a pound ; on the average 4^ cents, or half a cent a 

 pound less than is credited for it in the Station valuation. 



Land Plaster. 



834. Cayuga Plaster, sent by P. M, Augur & Sons, Middlefield. 



Analysis. 



Tlydrated sulphate of lime or plaster, 68.71 



Insoluble in acid, 7.50 



Carbonates, 23.79 



100.00 

 Cost per ton, $6.00 



The Land Plaster from New York State, Onondaga and Cay- 

 uga plaster, contains usually from 65 to 75 per cent, of hydi-ated 

 plaster, 6-8 per cent, of insoluble matter, besides from 18 to 28 

 per cent, of carbonate of lime. 



Nova Scotia plaster has on the average 94 per cent, of hydra- 

 ted plaster, 2 per cent, of insoluble matter and 4 per cent, of 

 carbonates. 



Lime. 



796. Fertilizer Lime from Canaan, Ct. Sold by H. K. Brain- 

 ard, Thompsonville. Sampled and sent by W. F. Fuller, Suffield. 



797. Fertilizer Lime (from Pennsylvania?) Sold by W. F. 

 Fuller, Suffield. Sampled and sent by H. H. Austin, 



Tlie direct results of the analyses were as follows : — 



796 T9r 



Lime,., 70.12 45.08 



Magnesia, 67 31.59 



Oxide of iron and alumina, 20 3.61 



Carbonic acid, . - 7.76 3.48 



Water, 20.50 4.77 



Silica, - 5.56 



Insoluble in acid, _.- .28 5.78 



Undetermined matters and loss, 47 .13 



• 100.00 100.00 



Cost per ton, $9.00 $8.00 



