19 



coefficient of purity being each !.." higher. Tin- licet- \\ere >maller, 

 however. and (lie average yield per acre \\a> lo\\er. The data for the 

 late planting arc responsible for the decrease to a <jTeat extent, the 



figures foi* the early planting being but little lower than those fur I'.HKI. 

 The climatic cunditiuns existing at Agricultural College and at 

 Detroit during this season are shown in the following tables: 



M, l>n,-'>ln,,',,;il <l<tin /' 



>/ ('<,//,,/,, .!/////., IHO1. 



Iii the following taMe is riven the suihshine record for Detroit, 

 Mich., 76 miles southeast of Agricultural College, the nearest point 

 at which sunshine records were kept. 



ildt'i for Ih'lrnil, Mii'li., J'.IOJ. 



These data show an abundant rainfall during the three principal 

 growing months, especially in July, when the amount appears t< he- 

 excessive. September was a dry month, favorable to the ripening of 

 the beet, while, on the other hand. October was a wet month and 

 unfavorable to the harvesting. The ligures fur Detroit show practi- 

 cally the same conditions as those prevailing at Agricultural College. 

 A comparison of the meteorological data with that for I'.HMI shows 

 that there was a fall in the average temperature of 1.7 degree- and an 

 increase in the precipitation of 2.8 inches, while the percentage of 

 sunshine increased ^.0 per cent. 



