1889.] 



PUBLIC DOCUMENT — Xo. 33. 



181 



Peruvian Guano. 



[From P. Williams & Co., Taunton, Mass. I. Warranted Peruvian Guano, No. 1. 

 II. Low-gi-ade Peruvian Guano.] 



Phosphatic Fertilizers. 



[Sent on from Ashby, Mass. I. Acid Phosphate. II. Dissolved Bone-black. 

 III. South Carolina Eock Phosphate.] 



Bone-black. 



[Sent on by F. G. Arnold, Swansea, Mass.] Percent. 



Moisture at 100° C, 6.04 



Ash, 67.43 



Phosphoric acid, 16.56 



Insoluble matter, .37 



