INSPECTION OF COMMERCIAL FERTILIZERS] 39 



Analysis: total nitrogen 6.78%, ammoniacal nitrogen .22%, nitric nitrogen 

 none, water soluble organic nitrogen L86%, water insoluble nitrogen 4.70%, 

 total phosphoric acid .38%. 



Hoof Meal. Sample secured through trade channels Mar. 2, 1928. Analysis: 

 total nitrogen 14.24%, ammoniacal nitrogen .29%, nitric nitrogen none, water 

 soluble organic nitrogen .94%, water insoluble nitrogen 13.01%, total phosphoric 

 acid 1.84%. 



Peruvian Guano. Sample secured through trade channels Mar. 2, 1928. 

 Analysis: total nitrogen 14.36%, ammoniacal nitrogen 2.39%, nitric nitrogen 

 none, water soluble organic nitrogen 2.94%, water insoluble nitrogen 9.03%, 

 total phosphoric acid 14.80%, available phosphoric acid 10%, potassium oxide 

 2.75%. 



Milorganite. City of Milwaukee, Wis. Composite sample drawn from 

 several hundred carloads shipped to all parts of the country during the fall of 

 1927 and spring of 1928. Sample received Feb. 26, 1928. Another sample 

 received through trade channels Feb. 23, 1928. Average analysis of the two 

 lots: total nitrogen 5.81%, ammoniacal nitrogen .08%, nitric nitrogen none, water 

 soluble organic nitrogen .29%, water insoluble nitrogen 5.44%, total phosphoric 

 acid 3.70%. 



Imported Processed Tankage. Robert A. Monroe & Co., Glasgow, Scot- 

 land. Forwarded dm-ing summer of 1927. Analysis: total nitrogen 6.96%, 

 ammoniacal nitrogen .15%, nitric nitrogen .06%, water soluble organic nitrogen 

 1.62%, water insoluble nitrogen 5.13%, total phosphoric acid .77%. 



Rehmsdorf Tankage. An imported product received through trade chan- 

 nels Feb. 27, 1928. Analysis: total nitrogen 7.84%, ammoniacal nitrogen .57%, 

 nitric nitrogen none, water soluble organic nitrogen 1.88%, water insoluble 

 nitrogen 5.39%, total phosphoric acid .77%. 



Process Tankage. Smith Reduction Co., Norfolk, Va. Received through 

 trade channels Mar. 14, 1928. Analysis: total nitrogen 7.90%, ammoniacal 

 nitrogen .11%, nitric nitrogen none, water soluble organic nitrogen .71%, water 

 insoluble nitrogen 7.08%, total phosphoric acid .64%. 



Darling's Tankage. Received through trade channels Feb. 23, 1928, 

 Analysis: total nitrogen 5.41%, ammoniacal nitrogen .31%, nitric nitrogen none, 

 water soluble organic nitrogen 1.66%, water insoluble nitrogen 3.44%, total 

 phosphoric acid 10.08%. 



Hynite Tankage. United Fertilizer Co., Milwaukee, Wis. Received 

 through trade channels Mar. 23, 1928. Analysis: total nitrogen 8.63%, ammo- 

 niacal nitrogen .16%, nitric nitrogen none, water soluble organic nitrogen 1.51%, 

 water insoluble nitrogen 6.96%, total phosphoric acid 1.02%. 



Agrinite. American Agricultural Chemical Co. Received through trade 

 channels Mar. 2, 1928. Analysis: total nitrogen 7.46%, ammoniacal nitrogen 

 .23%, nitric nitrogen .04%, water soluble organic nitrogen 2.01%, water insoluble 

 nitrogen 5.18%, total phosphoric acid 1.40%. 



Nitrolene. F. S. Royster Guano Co., Norfolk, Va. Received through 

 trade channels Mar. 2, 1928. Analysis: total nitrogen 9.51%, ammoniacal 

 nitrogen .74%, nitric nitrogen none, water soluble organic nitrogen 5.92% 

 water insoluble nitrogen 2.85%, total phosphoric acid 1.28%. 



Whale Guano. Received through trade channels Mar. 2, 1928. Analysis: 

 total nitrogen 8.58%, ammoniacal nitrogen .14%, nitric nitrogen none, water 

 soluble organic nitrogen 2.90%, water insoluble nitrogen 5.54%, total phos- 

 phoric acid 11.48%. 



Dry Ground Fish. Received through trade channels Mar. 2, 1928. Anal- 

 ysis: total nitrogen 9.52%, ammoniacal nitrogen .12%, nitric nitrogen none, 



