LESSONS ON POTATOES FOR RURAL SCHOOLS. 
11 
upon variety. It may be thick or thin, tough or brittle. A thick, 
fairly tough skin is preferred. 
8. Flesh: When cut, firm, clear in color, free from hollow center, 
dark rings, discoloration, woodiness. 
9. Freedom from blemishes: No scab spots or skin ruptures from 
any other diseases, no cuts, bruises, scratches, or other defects. 
Practical exercises. — Students should practice on identifying the 
different varieties of potatoes until they can be recognized at sight. 
The chief characteristics noted above should be studied and students 
taught to observe varieties from type. Use score card suggested be- 
low or ask the State agricultural college for enough to supply the 
class. Require the students to mark the points on the card. Com- 
pare with a typical potato (either a real potato or a good picture of 
one) to note any difference. Hold judging contests in which the 
students will be required to judge and score the different varieties. 
Ask for the help of the county agent in these contests. Make this 
work of a practical nature, and drill until the pupils are able to 
recognize readily the different kinds of potatoes and to score them 
fairly accurately. The following form of score card may be used: 
Potato Score Caed. 
Variety — Name. 
Scale of points. 
Standard. 
Student's 
score. 
Corrected. 
Trueness to type 
20 
15 
20 
5 
10 
5 
5 
5 
15 
Uniformity 
Shape 
Color 
Size 
Eyes 
Skin 
Flesh 
Freedom from blemishes 
Total 
100 
Scored by. 
Date. 
Note. — 'Give directions for using the above card. 
Correlations. — Language: Oral or written reports on the kinds 
of potatoes grown in the district or in the State; how to judge po- 
tatoes; a history of the chief classes of potatoes will all provide 
abundant language work. 
History : Write a history of the potato, an account of its introduc- 
tion into Europe, the story of Luther Burbank and the Burbank 
potato. 
Arithmetic: If potatoes scoring 100 points are worth $2.50 per 
bushel, what would be the value per bushel of the potatoes scored, 
