34 



THE CONKECTICUT AGRICULTURAL 



Comparison of different samples of the same (or similar) 

 BRAND of Superphosphate, &c. 



r 



David Dickenson's J 

 Superphosphate, j 



I 



55T 

 627 

 57Y 



558 

 576 



C 604 



Peruvian Guano, < 550 



( 589 



Soluble Pacific Guano, 



(661 



} 565 



Quinnipiac Fertilizer ( 568 

 Go's Superjihosphate, ( 601 



j 561 



Pine Island Guano, 



Mapes' ( "A" Brand 593 

 Complete ■< For heavy soils 598 

 Manure, ( For light soils 594 



Cost. 



$40.00 

 40.00 

 40.00 

 40.00 

 40.00 



60.00 

 60.40 

 66.00 



45.00 

 45.00 



40.00 

 40.00 



45.00 

 45.00 



42.00 

 52.00 

 53.00 



* Including 0.62 in form of 



The more complete analysis of No. 1 

 550, is as follows : 



Volatile and organic matters and water, . . . . 



(( 'oiitaining nitrogen 5 



Ash 



nitrates. 



Peruvian guano, sample 



- 29.77. 



70.23 



.57.) 



100.00 

 The Ash consists of 



Sand and matters insoluble in acid, 10. 15 



Oxide of Iron, . 1.08 



Lime, 13.58 



Magnesia, 2.10 



Potash, 2.40 



Soda, 11.39 



Phosphoric Acid, 16.18 



Sulphuric Acid, 8.14 



Chlorine, 6.75 



Deduct Oxygen equivalent to Chlorine, 



71.77 

 1.54 



70.23 



Peruvian Guano formerly used to contain not more than one to 

 two per cent, each of soda, sulphuric acid, and chlorine. The 



