24 



Coe-Mortimer Co., Double Strength Top Dressing, No. 1225. 

 Nitrogen found 7.76%, guaranteed 8.23%; available phosphoric acid 

 found 7.35%,, guaranteed 7%; potash 7.89%, guaranteed 8%. 



Peruvian Grass Top Dressing, No 1224. Nitrogen found 7.96%; 

 guaranteed 8.23%; available phosphoric acid found 4.54%, guaran- 

 teed 4.50; potash found 5.76%,, guaranteed 6%. 



Special Grass Top Dressing, No. 225. Nitrogen found 4.55%, 

 guaranteed 4.94%; available phosphoric acid found 4.37%, guaranteed 

 4%; potash found 2.84%, guaranteed 3%. 



Essex Fertilizer Co., Essex Lawn Dressing, Nos. 273-746. Ni- 

 trogen found 3.51%, guaranteed 4.10%; available phosphoric acid 

 found 8.42%, guaranteed 7%; potash found 5.48%, guaranteed 6%. 



Chas. JV. Hastings., Ferti Flora, No. 1060. Nitrogen found 

 2.94%, guaranteed 3.25%; available phosphoric acid found 3.25%, 

 guaranteed 3.67%; potash found 3.35%, guaranteed 3.30%. 



Johnson Seed Potato Co., Ideal Potato Manure, Hoeing Brand, 

 No. 1210. Nitrogen found 3.19%o, guaranteed 3.29%; available 

 phosphoric acid found 8.57%, guaranteed 6%; potash found 8.69%, 

 guaranteed 10%. 



Mapes Formula 8c Peruvian Guano Co., Top Dresser Improved, 

 Full Strength, No. 520. Nitrogen found 8.95%o, guaranteed 9.88%o; 

 available phosphoric acid found 8.24%,, guaranteed 5%; potash 

 found 3.75%, guaranteed 4%. 



National Fertilizer Co., Chittenden's Connecticut Valley To- 

 bacco Starter, No. 1106. Nitrogen found 7.04%, guaranteed 8.23%; 

 available phosphoric acid found 4.34%, guaranteed 1%; potash found 

 3.17%o, guaranteed 2.50%. 



Chittenden's High Grade Special Tobacco Fertilizer, No. 819. 

 Nitrogen found 5.11%, guaranteed 5.76%; available phosphoric acid 

 found 5.84%, guaranteed 5%; potash found 8.60%, guaranteed 10%. 



F. S. RoysterGuano Co., Royster's Royal Special Potato Guano, 

 No. 713. Nitrogen found 3.63%, guaranteed 4.11%; available phos- 

 phoric acid found 7.61%, guaranteed 7%; potash found 7.83%, 

 guaranteed 7%. 



QUALITY OF PLANT FOOD. 



Character of Nitrogen. 



A study of the forms of nitrogen in the different grades of fer- 

 tilizer furnishes interesting and suggestive data. There is no reason 

 to question the availability of the mineral forms of nitrogen in fer- 

 tilizers, — whether in the form of nitrate of soda or sulfate of ammonia, 

 both salts being soluble in water. As might be expected, there is a 

 varying proportion of mineral nitrogen found in the brands offered by 

 different manufacturers and it is probable that the lower cost of ni- 

 trogen from this source has a tendency to an increased use of this 



