LABORATORY EXERCISES 411 



LABORATORY EXERCISES 



The pupils should become familiar with as many of the plants 

 discussed in this chapter as possible. Most of them can be grown to at 

 least a partial state of maturity almost anywhere in the United States, 

 and at least a few plants of each (with the possible exceptions of the 

 velvet bean and bur clover in the North) may well be grown on the 

 school farm. They can be utilized as illustrative material in the fresh 

 state in the field or dried and used in the laboratory at any season of 

 the year. For growing in the northern portion of the United States, 

 early varieties of cowpeas like New Era and of soy beans like Ito San 

 should be selected. 



SUPPLEMENTARY READING 



Burkett's Farm Crops. 



Cyclopedia of American Agriculture, Vol. II. 



Hunt's Forage and Fiber Crops in America. 



Jones' The Peanut Plant. 



Roper's The Peanut and Its Culture. 



Sevey's Peas and Pea Culture. 



Shaw's Clovers and How to Grow Them. 



Shaw's Forage Crops. 



Voorhees' Forage Crops. 



Wing's Meadows and Pastures. 



Farmers' Bulletins: 



224, Canadian Field Peas. 



278, Leguminous Crops for Green Manuring 



289, Beans. 



309, pp. 15-19, Cowpeas and Soy Beans. 



315, Legume Inoculation. 



318, Cowpeas. 



372, Soy Beans. 



431, Peanuts. 



441, Lespedeza. 



