Ele7nents, Symbols aiid Analyses. 



179 



Analyses, continued. 



33. Dxick-Manure, Fresh. 



Water 566.0 



Organic substance . . . 262. 



Ash 172.0 



Nitrogen 10.0 



Potash 6.2 



Soda 0.5 



Lime 17.0 



Magnesia 3.5 



Phosphoric acid 14.0 



Sulphuric acid 3.5 



Silica and sand 28.0 



34. Dove-Manure, Fresh. 



Water 519.0 



Organic substance . . . 308.0 



Ash 173.0 



Nitrogen 17.6 



Potash 10.0 



Soda 0.7 



Lime 16.0 



Magnesia 5.0 



Phosphoric acid 17.8 



Sulphuric acid 3.3 



Silica and sand 20.2 



(d.) Analyses of Various Materials which are used for 

 Fertilizers. 



35. Peruvian Guano. 



Moisture at 100° C. . . .12.17 

 Total phosphoric acid . . 18.45 

 Soluble phosphoric acid . 1.54 

 Reverted phosphoric acid 5.92 

 Insoluble phosphoiic acid 10.99 

 Potassium oxide . . . . 3.46 



Total nitrogen 5.13 



Actual ammonia ... 3.94 

 Organic nitrogen .... 0.86 

 Nitrogen as nitric acid . 0.33 

 Insoluble matter .... 13.64 



36. Oak-Leaves. 



Moisture at 100° C. . . . 9.601 

 Organic matter .... 83.360 

 Mineral matter . . . . 6.840 



Ferric oxide 0.027 



Calcium oxide 0.548 



Magnesium oxide . . . 0.267 



Potassium oxide .... 0,549 



Phosphoric acid .... 0.058 



Nitrogen 0.930 



Soluble silica 0.018 



Insoluble silica 4.333 



37. Sea- Weed. (Two samples.) 



I. 



Moisture at 100° C 12.05 



Nitrogen 1.66 



Phosphoric acid 0.44 



II. 

 14.96 



.L28 

 0.17 



