COST OF GROWING CORN 



293 



A CAREFUL WISCONSIN INVESTIGATION 



In his report of 1898, Mr Halford Erickson, com- 

 missioner of statistics for Wisconsin, presents a valu- 

 able contribution of data upon the question of cost 

 of producing staple crops. It is based upon exact 

 records kept by a large number of representative farm- 



Fig 84 — The Corn Worm 



Heliothis ar-miger : a, adult moth ; b, dark full-grown larva; c, light-colored full- 

 grown larva; d, pupa — natural size (after Howard) 



ers, the method followed in securing the data being 

 exactly the same as that pursued in the American 

 Agriculturist and Orange Judd Farmer investigation, 

 which will be presented in detail later. This estimate 

 includes as part of cost production interest on perma- 



