ELEMENTS, SYMBOLS, AND ANALYSES. 271 



31. Hen-Manure, Fresh. 



Water 560.0 Lime 24.0 



Organic substance . . 255.0 Magnesia 7.4 



Ash . 185.0 Phosphoric acid . . . 15.4 



Nitrogen 16.3 Sulphuric acid .... 4.5 



Potash 8.5 Silica and sand .... 35.2 



Soda 1.0 



32. Goose-Manure, Fresh. 



Water 771.0 Lime 8.4 



Organic substance . . 134.0 Magnesia 2.0 



Ash 95.0 Phosphoric acid ... 5.4 



Nitrogen 5.5 Sulphuric acid .... 1.4 



Potash 9.5 Silica and Sand . . . 14.0 



Soda 1.3 



33. Duck-Manure, Fresh. 



Water 566.0 Lime 17.0 



Organic substance . . 262.0 Magnesia 3.5 



Ash 172.0 Phosphoric acid . . . 14.0 



Nitrogen 10.0 Sulphuric acid .... 3.5 



Potash 6.2 Silica and sand .... 28.0 



Soda 0.5 



34. Dove-Manure, Fresh. 



Water 519.0 Lime 16.0 



Organic substance . . 308.0 Magnesia 5.0 



Ash 173.0 Phosphoric acid . . . 17.8 



Nitrogen 17.6 Sulphuric acid .... 3.3 



Potash 10.0 Silica and sand . . . 20.2 



Soda 0.7 



(d) ANALYSES OF VARIOUS MATERIALS WHICH ARE USED 

 FOR FERTILIZERS. 



35. Peruvian Guano. 



Moisture at 100 C. . . 12.17 Total nitrogen . . . 5.13 



Total phosphoric acid . 18.45 Actual ammonia . . 3.94 



