INDEX. 



339 



Schlaggenwald apatite, 50. 

 Schoenite, 309. 

 Sea-fowl excrement, 278. 

 Seed, phosphates in, 6. 

 Setif phosphates, 37. 

 Sfax phosphates, -58-9. 

 Shark's Bay guano, 49, 56-7. 

 Sidney Island guano, 39, 56-7. 

 Sieves, 87-91, 102. 

 Sifting machine, 102. 

 Silicates, calcic, 312. 

 Silicic fluoride, 110. 

 Silkworm litter, 294. 

 Silurian lish, 3. 

 Skin debris, 175. 

 Slow-speed bone crusher, 177. 

 Sodium and ammonium phosphates, 

 11, 12. 



— phosphates, 11, 12, 



Soil migration of phosphoric acid in, 

 3-4. 



— superphosphates become insoluble in 



the, 129. 

 Solubility of phosphates in soil, 140-1. 

 Sombreru phosphates, 39, 49, 54-o, 83. 

 Sorame phospliates, 14-16, 50-1, 82-3, 



1-54. 

 South Carolina phospliates, 30, 

 Spanish phosphates, 5, 50-3. 

 Stamping mill, 99. 

 Starbuck Island guano, 39, 49, 56-7. 

 Starkenbaeh coprolites, 50-1. 

 Steam stills for ammoniacal liquor, 



240. 

 Stercorite, 12. 

 Struvite. 12. 

 Suffolk crag, 26. 



— coprolites, 26, 

 Sulphophosphates, 160. 

 Superheated superphosphate, 121). 

 Superphosphate, bone, 187-9. 



— of ammonia, 143. 



— — and potash, 146. 



— drying, 81. 



— historical review, 67-72, 



— manufacture, 84-110. 



— mixing, 105-10. 



Superphosphate, shifting (mechanical), 

 116. 



— sifting, 68, 137. 



— storing and retrogradation, 111. 

 Swan Island guano, 49. 



Syenite, phosphorus in, 2. 

 Sylvinite, 298, -509, 311, 313. 



Tallahasee phosjihates, 52-3. 

 Tebessa phosphates, 37, 58-9. 

 Teleosaurus, 25. 



Tennessee phosphates, 52-3, 82, 83, 137. 

 Testigos phosphates, 49, 54-5. 

 — iron phosphates, 54-5. 

 Timor Island guano, 49, 58-',>. 

 Toothed roller mill, 97. 

 Toque\ille phosphates, 58-9. 

 Tricalcic phosphates, 50-59. 

 Truxillo phosphates, 52-3. 

 Tunis phosphates, 49, 58-9. 



V. 



Vasseux fermentation i)rocess for re- 

 coverv of ammoni:;. from spent 

 wash," 269-70. 

 [ Yaucluse phosphorite, 50-1. 



Yetclies, potash in ash of, 295. 



Vine, potash in ash of, 295, 



Vitrolized bones, 187-9. 



Yivorilla Island guano, 49, 52-3. 



w. 



Wagner" s researches on basic slag, 197. 

 Wales phosphate. 52-3. 

 Wasserleben phosphorite, 50-1. 

 Waste products, conversion into manure, 



2-55-267. 

 West Indian phosphates and pliospho 



guanos, 49, 52-55. 

 Whale guano, 293. 

 Wheat straw, potash in ash of, 295. 

 Willow, potash in ash of, 295. 

 Wool, waste rags, etc., 194, 265. 

 W'oronesch phosphate, 52-3. * 



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