Nature- Study Agriculture 



Tree 

 surgery 



W. T. Skilling 



FIG. 64. Pruning tools: curved blade saw, hedge shears, and long- and 

 short-handled lopping shears. 



broken by the wind, it may often be repaired so that it 

 will recover from the injury. Figure 67 shows methods 

 of " tree surgery," which may add many years to the 

 life of a valuable tree. 



Experiments and Observations 



1. Test one hundred of each of several different kinds of seeds. 



2. Before the first heavy frost, select several of the best ears 

 of corn you can find and store them in one of the ways described 

 in this chapter. 



3. To test the proper depth of planting, plant in the garden a 

 few seeds of each of several different crop plants : barely cover a 

 few seeds of each variety ; cover a few of each half an inch deep, 

 a few of each an inch deep, then others two, three, four, five, and 

 six inches. 



4. See how many different kinds of plants you can make grow 

 from cuttings, following the directions given in this chapter. 



