CHEMISTRY AND USES OF THE POTATOE. 



21 



Taking female milk as the standard, and making it 

 100, MM. Schlossberger and Kempt have given the follow- 

 ing scale of the nitrogen contained in different varieties of 

 food, which will show the relative value of the potatoe for 

 this purpose : 



Female milk 



100 



Rice ...; v , 

 Potatoes . 

 Turnips 

 Rye 



Maize . 

 Oats 



Barley . 

 Wheat 

 Wheat bread . 



VEGETABLE FOOD. 



... . 81 



. 84 



106 



. 106 



100125 



. 138 



125 



119_144 



142 



Black bread . 



Bread from Glasgow . 



Beans .... 



Peas . 



Pulse .... 



French beans . .&)? , 



Three species of agaricus 

 respectively 



166 

 134 

 320 

 233 

 276 

 283 

 289 

 264 



ANIMAL SUBSTANCES. 



873 

 911 



880 



942 



1006 



996 



999 



]003 



1028 



910 



(74.) From certain experiments made at Glasgow, it 

 was found that six pounds of potatoes alone were amply 

 sufficient for the food of a man per diem ; now this costs 

 IJd., which is probably the least possible cost at which a 

 man could be fed in ordinary times. An Irishman in 

 health and activity is said to eat from ten to twelve pounds 

 of potatoes per diem. 



(75.) I have been for some months past trying experi- 



