4 MAINE STATE COLLEGE 



be equivalent to an excess of 29 bushels per acre over the other. 

 It will be seen that these facts are, in a measure, opposed to 

 conclusions concerning the system which have heretofore been 

 published. We would not, however, condemn the method without 

 further trial ; though it is but just to say that certain parties 

 quoted as obtaining specially marked results from the trench 

 system have discarded this method in general practice. 



Conclusion: — It is questionable whether the results obtained 

 will justify the extra labor involved in practicing the trench 

 system of potato culture. In our trials the past season duplicate 

 lots in every instance produced contradictory results. 



W. M. MUNSON. 

 Maine State College, ) 

 Orono, Me., May 1, 1894. j 



