ANALYSIS OF POTATO. 407 



PROXIMATE PRINCIPLES. 



Albumen, gluten, caseine, . . . 5.8 



Fat, oil, . . . . . .1.0 



Starch, . . . . . .64.2 



Gum, dextrine, pectine, . . . .2.2 



Sugar, ...... 13.5 



Fibre and husk, . . . . .13.3 



100.0 



ASH. 



Total sulphur, . . . 0.094 



Sand and silica, ..... 1.7 



Potash, . . . . . .43.1 



Soda, . . . . . . 3.2 



Lime, ...... 1.7 



Magnesia, . . . . . 3.2 



Oxide of iron, . . . . . 0.4 



Chlorides of potassium and sodium, . . 4.7 



Phosphoric acid, . . . . 8.5 



Sulphuric acid, . . . . . 15.2 



Carbonic acid, . . . . .18.3 



100.0 



COMPOSITION OF POTATO HAULM. 



Organic matter, ..... 85.0 

 Ash, . . . . . . 15.0 



ULTIMATE ELEMENTS, DRIED AT 212 FAHRENHEIT. 



Carbon, . . . . . .54.5 



Hydrogen, ..... 6.2 



Oxygen, . . . . . . 36.6 



Nitrogen, ...... 2.7 



100.0 

 Ammonia, . . . 3.27 



PROXIMATE PRINCIPLES NOT GIVEN. 



