282 LESSONS IN AGRICULTURE 



way, and then divide each half. Do not put the potatoes 

 back into the receptacle that has had in it scabby po- 

 tatoes. The vessel to be used should be washed with 

 the solution in the tub. 



Plant the treated tubers in rows by themselves, and 

 mark with stakes the rows so planted. To show the 

 comparative results of the treatment, plant the same 

 number of scabby potatoes, and give both equal care and 

 cultivation throughout the season. 



When the potatoes are ripe, dig the treated and un- 

 treated separately. Count the increase in the treated 

 potatoes. A careful record of this lesson should be kept, 

 including the cost of treatment, the price of potatoes, 

 and the total gain from the treatment, due to the in- 

 creased value of the yield. 



It would be a good service to the district if pupils 

 would bring all their scabby potatoes to the school to be 

 treated, before planting. Any helpful co-operation be- 

 tween the school and the home is of incalculable value 

 to both institutions. 



Reference: Farmers' Bulletin, No. 

 Problems 



1. If the average weight of seed potatoes is four 

 ounces each, and if they are cut in halves and planted 

 in rows three feet apart and eighteen inches apart in 

 the row, how many bushels of seed will be required per 

 acre? 



2. How many bushels will be needed if whole po- 

 tatoes are used? Quarters? Eighths? 



3. Select seven potatoes as nearly the same size and 



