ANALYSES OE TffE POTATO. 
52 ' 
XVIII. GILKEY POTATO. 
MEBC'jGR, CHEKAIGOES, MESHOHKOC, NERCHANJfECK. 
The yornig tuber, obtained in the Albany market the 7th or 8th of June. They 
only about half grown, or considerably less than when in market in their season. 
Organic analysis of 300 grs. 
Per eentum. 
Water - 243'00 
Starch -■ .. 39-99 13-33 
Albumen - - = - »■ 3 - 38 1"12 
Casein - 3 64 1 *21 
Dextrine - - - - - - - 1*81 0"60 
Fibre, oil, sugar and gluten - 11 ’85 3 - 95 S. 
From this analysis it appears that this variety, when young, is as rich in nutritive matter 
as When mature. 
The fibre gave ash 1-8143, or O • 6037 per centum ; and consists of sulphate of lime,, 
magnesia, and bat a small proportion of phosphate of lime and magnesia. 
Proportions of water and ash of young and old potatoes , 
Young potatoes, 100 grs. gave 
Dry - 
Ask - 
Calculated dry 
- - - 
- 17-55 
- 1-07 
6-09- 
Dry matter 
Ash • 
Old set, 100 grs. inside gave 
• e> « 
♦A. 
3-54 
0-51 
Old set outside, in 100 grs. gave 
Dry matter - 
Ash - 
5-72 
1-64 
It will be observed, that in the old set, the inside is mostly water ;■ that the water in fact 
increases, while the inorganic matter diminishes, and it probably goes into the young set 
in the condition of nutriment. 
Proportion of Water emd ash in different parts of the vines. 
1. Leaves of one stalk or vine, collected on the 12th of Jane. 
Per centum. 
Quantity ...... 781 "50 grs. 100‘00 
Dry matter 93° Id’ 11-88 
Ash . 16-03 2-0S 
