32 



SUMMARY OF WEATHER OBSERVATIONS. 



Mav 18— Oct. 1, 1890. 



*136 days. 



Cold nights, as shown by the low minimums in every month and a 

 very light rainfall in June are the most striking points brought out 

 by these observations. The comparatively low temperature undoubt- 

 edly accounts for the somewhat large proportion of soft corn in this 

 experiment ; for the soil is naturally rather cold. 



RESULTS OF THE ADDITION OF NITROGEN TO 



Phosphoric of 

 Nothing. Acid. 



Hard corn, bushels per acre, -2.5 12.8 

 Soft corn, " '' -1-2 2.2 



Stover, pounds, " -253 1142 



Value of average net increment, 



Financial result, 



Muriate Phosphoric 



Acid and Average 



RESULTS OF THE ADDITION OF PHOSPHORIC ACID TO 



Nothing 



Hard corn, bushels per acre, -3.3 

 Soft corn, '' '' -1-3 



Stover, pounds, " -587 



Value of average net increment 



Financial result, 



