56 



JOURNAL OF THE 



I. Kernel, 



No. i.jNo. 2. No. 3. 



Moisture @/ 212° F.. 



Ash 



Fats 



Crude Cellulose . , — 

 Protein Nitro. Matter 

 Carbohydrates N. free 

 Extract 



No. 4. 



7.08J 7.25; 7.50 7.23 



4.9IJ 4.15J 3.51J 4-23 



34.42! 40.39' 39.76I 38.09 



4-7oi 3-43 4.24! 4-21 



30.251 27.941 23.44i 27.68 



Nitrogen 



Equiv. to NH3 



Nutritive Ratio 



II. 

 Whole Seed — Kernel, 

 Hull. 



1:1.90 1:2.17 1:2. So 1:2.19 



Ash. 

 Fats 



4.26 3.46I 3.26 

 19.71 20.19 19.88 



No. 5, 



6.45 

 5.41 



44.70 

 4.06 



21.62 



17.76 



100.00 



No. 6. 1 No, 7. 



No. 8. 



8.81; 7.46, 6.94 



4.96; 4.45! 4.92 



38.54I 36.77; 32.71 



4.33 5.12; 5.00 



27.25 

 16. II 



28.81 35.18 

 17.29 15.25 



100. 00! 100.00 100.00 



3-46 

 4.20 



1:3.07 



4.38 

 5.29 



4.61 



5-59 



5-63 

 6.81 



1:2.13 1:2.05 1:1.50 



3.-40 



4.27 



19.04 22.35 



3-62 3-47 

 19.271 1S.38 



4-12 



RATE OF REVERSION IN SUPERPHOSPHATES 

 PREPARED FROM RED NAVASSA ROCK. 



W. B. PHILLIPS. 



(Abstract from Part of Thesis for Ph. D.) 



The manufacture of a high grade superphosph: te from Red Na- 

 vassa Rock is one of those problems which, appearing easy of an- 

 swer, yet present great difficulties. How great these difficulties are, 

 only the manufacturer knows. Working formulae which on other 

 natural phosphates give entire satisfaction, on Red Navassa give 

 curious and rather discouraging results. In this Rock we have to 

 deal with a mixture of the phosphates of Calcium, Iron, and Alu- 

 minum, and the oxides of Iron, and Aluminum. The superphos- 

 phate made from it is consequently of a more complicated structure 

 than that made almost entirely of Tri-calcium Phosphate, i. e., from 

 bone, or Apatite, or Charleston Rock. In a high grade superphos- 

 phate made from Red Navassa Rock, the Soluble Phosphoric acid 



