A STUDY OF THE POTATO 



109 



Separate the potatoes into groups with respect (1) to 

 shape, (2) to size, (3) color of skin, (4) texture of skin, (5) 

 depth of eyes, and (6) condition, and record the results of 

 each separation. 



Fig. 4.5. — Tubers of Desirable and Undesirable Shape. The Potato at 

 the Bottom is of the Desired Shape. (After Frazer.) 



Select from the sample five large, five small, and five 

 knotty, rough potatoes. Weigh each group separately 

 and after recording the weight, peel the potatoes in each 

 group. Weigh and record the weight of peeled potatoes 



