146 FERTIUTY AND FERTILIZER HINTS 



Page 59— Table of composition of high grade nitrogenous products. 



Page 62— A full description of wool waste, shoddy, etc. 



Page 63 — A more complete discussion on garbage tankage. 



Page 64 — Vegetation and laboratory experiments with several high and low 

 grade nitrogenous substances. Also a description and discussion of 

 these materials. 



Page 67 — Statistics giving the amounts of nitrogenous materials used in 

 manufacturing commercial fertilizers for 1900 and 1905. The total 

 ammonia contained in manufactured fertilizers ; nitrogen removed by 

 different farm crops. 



Page 68 — Table showing the value of nitrogen in increasing yields for a 

 period of 56 years, with a discussion of the same. 



Page 70 — Composition of raw bones. 



Page 71— Composition of good and poor steamed bone-meals. 



Page 71 — Composition of raw and steamed bones for comparison. 



Page 72 — Seven analyses of bone-black from sugar refineries. 



Page 72— Comparison of bone-ash, commercial bone-ash, pure o.x bone-ash, 

 horse shank bone-ash, ox bone-ash. 



Page 73 — A complete discussion of the phosphate deposits in the United 

 States with statistics and tables on total production and individual 

 production, market value, estimated life of, utilization, exports, devel- 

 opment, Western deposits, and other interesting data. 



Page 74 — Analyses of South Carolina phosphates. 



Page 74 — A description of how Florida phosphates are mined. Analyses of 

 Florida phosphates. 



Page 75— Analyses of brown, blue and white rock. 



Page 75 — Analyses of Canadian apatite. 



Page 76 — Composition of basic slag and comments on. 



Page 76 — List of phosphatic guano deposits, including those that have been 

 and are being worked ; analyses of these guanos. 



Page 79— Influence of degree of fineness on value of phosphates, with 

 experimental results. 



Page 83 — A complete description of the form of phosphoric acid in basic 

 slag and its availability. 



Page 83— Amounts of acid to dissolve phosphates ; the reversion of phos- 

 phoric acid. 



Page 85 —Classification of terms used for available and total phosphoric 

 acid ; amount of available phosphoric acid contained in manufactured 

 fertilizers. 



Page 87 — Average composition of superphosphates and double superphos- 

 phates. 



Page 88— Amounts of phosphates used for manufacturing fertilizers. Phos- 

 phoric acid removed by crops. 



Page 89— Experiments showing the fixation of phosphoric acid. Discus- 

 sion on the absorption of phosphoric acid. 



