l88 MAINE AGRICULTURAL EXPERIMENT STATION. I914. 



7. The Senator and the Regenerated Swedish Select show 

 the largest variability for the four years. The Prosperity, Irish 

 Victor and the Imported Scotch show the least variability. In 

 the latter variety the standard deviation is less than seven-eights 

 of a pound and is not beyond the limit of experimental error. 



It is of interest that the Imported Scotch which was one of 

 the least variable varieties in respect to other characters also 

 shows the smallest variability in regard to bushel weight. In all 

 of its characters this variety has proven itself to be one of those 

 least affected by external conditions. 



