CONTENTS. 9 



^ 



mineral phosphates of South Carolina. 142-3, Analysis of 

 Prices Profits when merely ground Of no value in this state. 

 144-5, Soluble phosphoric acid How produced Too little sul- 

 phuric acid used. 146, Amount required Amount for 100 Ibs. 

 ox bones The compounds produced. 148, Cost of materials for 

 a ton, and the value. 149, Profits to manufacturers Kind sold. 

 150-1, Cost and value if made of mineral phosphate Profits 

 when sold at $50 per ton Kind sold. 152-3, A bogus super- 

 phosphate Insoluble phosphoric acid no value to farmer. 154, 

 Soluble bone phosphate fraud. 154, Ammonia and Nitrogen 

 Actual and potential ammonia Actual of most value Manufac- 

 turers make no distinction in giving analyses. 156, Value of 

 each. 157, Crude sulphate of ammonia Nitrogen as pot. amm. 

 and how changed to actual. 158, Cost of nitrogen in bones. 

 159-60, Value of potash with tables Deceptions of manufactu- 

 rers. 161, Catechism for manufacturers. 



CHAPTER VI. 



NATURE AND VALUE OF NATURAL MANURES, COMPOSTING, ETC. 



(Page 168-192.) 



163, Natural manures. 164, These not sufficient. 155, Stable 

 Manures Their composition and value. 167, Analysis of excre- 

 ment and value City Stable Manure Its value Frauds and 

 profits of dealers. 169, Rotted and dried stable manure Use of 

 rotting. 170, Analysis of liquid excrement and value. 171, 

 Total value and remarks. 172, Swamp Muck Its composition, 

 etc. 173, Effects of application. 174, Composting of muck 

 mud dried earth. 175, Leaves of Trees Their value Analysis 

 of, etc. 175, Wood and Coal Ashes. 176, Analysis of Phos. 

 acid and potash in ashes Effect of coal and peat ashes. 177. 

 Soot Its value Analysis of 177, Marl Its composition, kinds 

 and value. 179, Green Manuring Its value, and better than 

 what Long root plants. 180, How and when to green manure 

 Benefits limited Rest does not restore land. 181, Liquid Ma- 

 nures Their value, etc 181, Composting What is necessary 

 Incorrect method. 183-4-5, Proper method described. 186, 

 Substances in heap Chemical changes effected. 189, Ground 

 bones Time required. 190, Mistakes made. 



