Show I 1 1 est of value the balance sl beet Is tl e reil test of the value alue of any enter r arse se or any section of farming coan erchil only to tie e extent tent to returns exceed costs call do profits appl appin in any study of ege en prodie tion alon it Is necessary to tile into consideration tl tie e van ing f factors ac in different areas tl TI e e are some parts in indich feed cos fos 9 are more than in others and there are ports diore n irle i rice returns are asprec ably higher and marketing costs less |