EXPERIMENT STATION BULLETINS. 



451 



/P/-5< 



/^/S 



reiot/\^e propor-tion^s 

 of co-sf &. prcf/t for 

 one _pc///on of )nn//k /n 

 mo^st pnofifciJb/e. doiyy 



Q/opram shQi*^/np 

 r^/at/VG propo/^t'Ori'S 

 of cost •&. prof/t for- 

 orje^o/Zon of m/fR m 

 most profftQb/e daijy 



/O/^ 



/^/-^ 



ys/at>i^(S proper f/on^ 

 of co^St one/ /OSS for 

 one _gfo//on of rrji/k ^n 

 mo'St unprof/fati/G c/oiry 



Diagram ■s/iow/np 

 re/aT/v<£. proport/on^ 

 of co'St and loss for 

 ore ^a//on of no//H /h 

 rnosf unprof/fQ/3/e. ck/rry 



Plate:.V. 



