EXCREMENTS. 



199 



Fauces of one Day. Urine of one Day. 



NaCl 0.0167 8.9243 



NaO 0.0185 — 



KCl — 0.7511 



KO 0.5455 2.4823 



CaO 0.5566 0.2245 



MgO 0.2781 0.2415 



Fe.Og 0.0544 0.0048 



PO^ 0.8072 1.7598 



SO3 0.0293 0.3864 



SiO, 0.0375 0.0691 



2.3438 14.8438 



Composition of Excrements. — The first four analyses are by 

 J. R. Rogers (Ann. Ch. Pliarm. Ixv. 85), the fifth is by Vohl. 



CONSTITUENTS. 



100 of flesh excrement yielded water. 



" dried " at 212° yielded ash. 



" ash gave matters soluble in 

 water 



'* ash gave matters soluble in 

 hydrochloric acid 



" ash gave matters soluble in 

 nitric acid 



" ash gave insoluble residue 

 Composition of the Ash. 



Potassa 



Soda , 



Lime 



Magnesia 



Oxides of manganese 



Chloride of sodium 



Phosphate of iron 



Phosphoric acid , 



Sulphuric " 



Carbonic " 



Chlorine " 



Silica 



Sand 



Iron 



Organic matter 



Kuhlmann has concluded from his experiments that, while 

 salts exert an influence in promoting the growth of plants, 

 nitrogenous matter is the most efiicacious. 



