CONTENTS. 



CHAPTEE I. 

 PHOSPHORIC ACID. 



PAGES 



Historv— Origin and distribution of phosphoric acid m nature— Properties 

 of phosphorus-1. Physical properties-2. Chemical properties- 

 Hvpophosphorous acid— Phosphorous acid— Phosphoric acid^Meta- 

 phosphoric acid-Pvrophosphoric acid-Orthophosphoric acid- 

 Monometallic orthophosphate-Dimetallic orthophosphate— In- 

 metallic orthophosphate-Phosphate of lime-Monocalcic phosphate 

 or acid phosphate of lime CaH,{PO,),-Dicalcic phosphate or 

 monacid phosphate of lime-Tricalcic phosphate-Neutral phosphate 

 of lime-Tribasic phosphate of lime Ca,(PO,),-Phosphates of 

 ammonium and sodium— Basic phosphate of ammonium (MHJr.^ ^4 

 —Monacid phosphate of sodium (ordinary commercial phosphate ot 

 soda Na.HPO, + 12H..O) — Monacid phosphate of ammonium and 

 sodium— Monacid phosphate of ammonium -Monacid phosphate ot 

 mac^nesium— Double phosphate of ammonium and magnesium 

 NH^MgPO, + 6H2O— Phosphates of iron— The phospTaates of alumina i-id 



CHAPTEE II. 



PRINCIPAL PHOSPHATE DEPOSITS. 



I France :-Pas de Calais, Somme, Oise-1. Somme phosphate-2. Pas 

 de Calais phosphates-3. Meuse and Ardennes phosphates--4. Cote 

 d'Or phosphates-5. Cher phosphate— 6. Quercy phosphates (Lot and 

 neighbouring departments)-?. Gard and Ardeche phosphates-8. 

 ,Dr6me and Isere phosphates-9. Pyrenees or Arieges phosphates li. 

 Belgium -.—Ciply phosphates— Liege phosphates. ^/I^- -^^§^^^,7, 

 Lyme Regis coprolites-Cambridge coprolites-Suffolk coprolites. 

 IV. Sweden and Norway :— Norwegian apatite. V. Germany, vi. 

 Austria-Hungary :— Bohemian phosphates. VII. Russia. viii. 

 Spain -.-Estremadura apatite. IX. North America -.-Canada- 

 South Carolina-Land phosphate and river pliosphate— 1 loricla— 

 Hard rock-Plate rock o? sheet rock-Soft phosphate-River pebbles 

 —Land pebbles— Tennessee— Tennessee rock phosphate— Remarks 

 on the actual condition of the phosphate industry m America. A. 

 Africa :-Tunis and Algeria-Marly phosphates m i^odules-Phos- 

 phatic limestones. XL Asia :-Phosphates of Oceania. (I-West 

 India Islands :-Redonda Isles, Sombrero, Navassa, Aruba, Cura(^ao, 

 Los Roques, Alta Vela, Rata. (H.) Islands of the Pacific Ocean .- 

 Baker, Jarvis, Maiden, Fanning, Starbuck Howland, Phoenix^ 

 Sidney ,Enderbury, Minerva, Aves, Lacepede, Flmt Browse (? Brown , 

 Fluon, Chesterfield, Abrolhos, Mona, Cayman Chpperton Nauru 

 Angaur, Makatea, etc. (I.) West India Islands:-!. Redonda 



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