RikAL School LrcAir.F.T. 



769 



How soon docs the barley come up? The alfalfa? In about six weeks 

 begin to examine the roots on the different plats for nodules. During 

 the summer, observe the difference in growth on the four different plats, 

 dig up the young alfalfa plants and look for the nodules on the roots 

 and see whether they occur on the inoculated areas or not, and whether 

 they are more abundant where lime was used. 



Fig. 76. Ithaca public school children receiving instntction in gardening 



The surest way to get alfalfa on a soil that is not especially adapted 

 to it, is to manure the soil well, then cultivate the soil all spring and sum- 

 mer so as to keep the weeds down, then seed the alfalfa alone about the 

 last of July or the first of August, applying lime and inoculation if these 

 are necessary. This work may be carried on at home, if there is no place 

 for it at school, or a farmer living near the school will probably be glad 

 to furnish the land. 



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