79.5 pounds ; and potash, 106.5 pounds. Plot 13 was manured at 

 this rate, while plot 10 received chemicals, furnishing : nitrogen, 

 25.1 pounds, phosphoric acid, 48.2 pounds and potash, 81.6 pounds 

 — one-quarter as much nitrogen, but little more than one-half as much 

 phosphoric acid and four-fifths as much potash ; and yet plot 10 gave 

 a larger crop than thirteen, though not quite so large an increase 

 over the neighboring nothings. 



SUMMARY OF WEATHER OBSERVATIONS. 



May 1 to Sept. 1, 1890. 



*124 days. 



This year, as last, this station shows a wide degree of variability. 

 It has the highest maximum and the greatest range for the months 

 under observation. 



RESULTS OF THE ADDITION OF NITROGEN TO 



Muriate Phosphoric 



