CONTENTS XV 



CHAPTER XI 



Organic Nitrogenous Manures 



Farmyard Manure. 



PA OR 



loo. Examination of Farmyard Manure . . • n? 



Liquid Excrement. 



loi. Separation of Urea from Human Urine . .118 



102. Experiments with Urea . . . . .119 



103. Uric Acid ....... 120 



104. Hippuric Acid ...... 120 



Shoddies^ Wool Wastes^ etc. 



105. Qualitative Examination of Fibrous Waste Products — 



Shoddies, etc. . . . . . .121 



106. Analysis of Fibrous Waste Products . . .123 



107. Examination of other Nitrogenous Waste Products . 123 



CHAPTER XTI 

 Phosphatic Manures 



108. The Calcium Phosphates . . . .125 



109. Solubilities of the Calcium Phosphates . . .125 



Bones and Bone Manures. 

 no. Examination of Bones and Bone Compounds . . 127 



Rock Phosphates and Superphosphate. 



111. Examination of Rock Phosphates . . .129 



112. Qualitative Examination of Superphosphate . .129 



Analysis of Superphosphate of Lime. 



113. Moisture and Combined Water .... 130 



114. Organic Matter ...... 130 



115. Sand, Silica, etc. ..... 130 



