LIST OF TABLES. 



TABLE PAGE 



I. Showing percentage of phosphoric acid in various rocks - 2 



II. Analyses of three different cypes of Sonime phosphates - 15 



III. Analysis of average sample of a field of Orville phosphate 



dried in vacuo at 98° C, density at 16° C. 3-1307. (H. 

 Lasne) ---]6 



IV. Beauval phosphate deposit. Analysis made by Nantier 



at the date of discovery ...... it^ 



V. Analyses of Pas de Calais phosphates - - - - - 18 



VI. Analysis of Meuse phosphates ----_. 19 



VII. Analyses of various phosphates in the Meuse, Ardennes, 



etc., districts. (Delattre) ------ 19 



VIII. Analysis of Ardennes nodules. (Maret and Delattre) - 20 



gB£;\ IX. Analyses of Auxois phosphates. (Delattre) - - - - 21 



X. Analysis of Quercy phosphates 22 



XI. Analyses of Ciply phosphates --..__ 24 



XII. Analyses of Liege phosphates --.--. 24 



XIII. Analyses of Lyme Regis coprolites. (Thompson Herapath) 25 



XIV. Analysis of Cambridge coprolites ----- 26 

 XV. Analysis of Suffolk coprolites ------ 25 



XVI. Analyses of fossil bones from Sutton bone bed - - - 26 



XVII. Analyses of Suffolk, etc., coprolites ----- 26 



XVIII. Analysis of Norwegian apatit (crystals) - - - - 27 



XIX. Analysis of Bohemian phosphates ----- 27 



XX. Analysis of Russian phosphorite nodules - . - . 28 



XXI. Analysis of Central Russia phosphorite - - - - 28 



XXIa. Analyses of samples of Estremadura phosphates - - 29 



XXII. Average composition of Carolina phosphate - - - 31 



* XXIII. Analysis of a fine sample of hard rock phosphate - - 32 



XXIV. Analyses of hard rock phosphate from Blue River Co. - 33 



.\XV. Analysis of land pebble phosphate ----- 35 



XXVI. Analysis of Tennessee rock phosphate - - . - 35 



XXVII. Complete analysis of au Algerian phosphate - - - 38 



XXVIII. Analyses of two samples of Djebel Gournia phosphate in 



the natural condition - - - - — - - 38 



XXIX. Analyses of Redonda phosphate 39 



XX A. Analysis of Sombrero phosphate. (Voelcker) - - - 40 



XXXa. Analyses of Nevassa phosphate - - - - - - 40 



xiii 



