50 ANALYSES OF THE POTATO. 



XV. ROUND PINKEYE (young). 



Pl. 1 B, fig. 1. 



Yellowish white; roundish but flattened, somewhat shorter than wide; eyes purplish, in 5's; 

 flesh yellowish, uniform. 



Obtained in the Albany Market, June 12, anil was about two-thirds its natural size. 



1. Organic analysis of 300 grs. 



Per centum. 



Water 238 "62 79-540 



Starch 40-46 13486 



Albumen 1"58 0-526 



Casein 175 0-583 



Dextrine - .... 0-36 0-120 



Fibre, fat and gluten ... - 12-50 4-133 



295-271 98-383 



Dry matter 20-46 



Ash 0-78 



Per centage of ash of dry matter - - 3-81 



Ash of the fibre 2-05 



2. Analysis of the ash. 



Silex 1100 



Coal 0-200 



Phosphates of magnesia, lime and iron - - 27-761 



Carbonate of lime ------ 0-410 



Magnesia -...--. trace. 



Potash 19-941 



Soda 20-116 



Chloride of sodium - 25-447 



Sulphuric acid ...... 5-938 



This analysis is calculated without carbonic acid or organic matter. 



Soda, in this potato, greatly exceeds the potash, and the amount of phosphates is greater 

 than is usually obtained. Probably the early potatoes are forced forward by the aid of 

 rich manures, and hence the excess of phosphates and soda. This, however, is only a 

 conjecture, which I have not the means of verifying. 



