02 



REPORT OF FIELD EXPERIMENTS. 



TABLE I. — Dressings on 



Analysis of 



Peruvian Guano. 



Moisture, 1 8 ' -1 6 



Organic matter, . . . 41 '22 



Phosphates, . . . . 20-22 



Sand, ...... 9-62 



Alkalies, 1048 



Superphosphate. 

 Moisture, 1257 



I 



I 



100-00 



Organic matter 

 Water of combination, 

 Mono-calcic phosphate, 

 Tri-calcic phosphate, , 

 Sulphate of lime, . . 



Alkalies 1-77 



Sand, 7-23 



9-09 



13-08 = 9-19PO, 

 18-59 = 9-49 P0 5 

 37-67 



Containing N = 10'72 

 PO., in alkalies, 1- 



Chloride potassium, KC1 = 80-76 ; Sulph. ammonia, NH^SO, = 95 per cent. 

 Nitrate soda, NaNO, = 96 6 per cent. 



