31 



Mapes' Formula & Peruvian Guano R. T. Prentiss, Granby, Mass. 



Co., New York City. Potato and Vegetable (2 samples), 



Economical Potato Manure, Corn Fertilizer (2 samples), 



Complete Manure for Light Soils, Top Dressing (2 samples). 

 Average Soil, Complete Manure, 



Lawn Top Dressing, Pulverized Manure Co., Chicago, 111. 



Complete Manure for General Use, Shredded Cattle Manure, 



Tobacco Ash Constituents. Pulverized Sheep Manure. 



Natural Guano Co., Aurora, 111. Ross Brothers Co., Worcester, Mass. 



Pulverized Sheep Manure. Lawn Fertilizer. 



Alphano Humus Co. The company claims the nitrogen in 

 the prepared humus has been made active by the process of man- 

 ufacture; yet the indications are that the material is largely dry 

 ground peat. 



Beach Soap Co. Early in the season this company stated that 

 it was their intention to use a small amount of dry ground peat 

 to improve the mechanical condition of the several brands, but 

 that the nitrogen from this source was not to be included in their 

 guarantee. Our analyses indicate this statement to be correct. 

 In general the statement may be made, that the use of such 

 materials is not objectionable, provided in accordance with our 

 fertilizer law, the nitrogen they contain is not included in the 

 guarantee. 



Bowker Fertilizer Co. The various brands of ground and 

 shredded sheep and cattle manure have a relatively low activity 

 as shown by all of the analyses. This is characteristic especially 

 of the solid part of nattu^al manures, and explains why it is so last- 

 ing (or slowly available) in the soil. There is nothing in the 

 analyses to indicate that foreign substances have been added. 

 In the Ammoniated Food for Flowers, which is a product put up 

 in small packages, the presence of the relatively small amount 

 of organic nitrogen-containing material which shows a low ac- 

 tivity must be considered as incidental and used to improve the 

 mechanical condition, as the total nitrogen is more than made up 

 by the mineral forms of nitrogen. 



Jos. Breck & Sons. There seems no occasion to suspect that 

 the sheep manure put out by this company is adulterated or 

 changed in composition from the original dried material. 



Buffalo Fertilizer Co. The one brand showing a low nitrogen 

 activity may be classed as a low grade fertilizer. The total 

 nitrogen ran somewhat over the minimum guarantee, but the 

 absence of water soluble organic nitrogen and the low activity of 

 the water insoluble organic nitrogen are strong indications that 

 some low grade material was used to furnish a portion of the 

 nitrogen. 



