12 — 



It will be seen that between the first and last cutting the dry 

 matter and carbhydrates increased about 150 per cent., the fat 

 about 125 per cent., and the protein nearty doubled. In our ex- 

 periments last year* we. found that the total feeding value, in the 

 period between tasseling and ripening, increased 166 per cent., so 

 that the experiments of this year confirm those of last. 



Further than this, investigations at three other experiment sta- 

 tions have been made in almost exactly the same way and the 

 results of all agree. These experiments in brief are as follows : 



In 1887 Professor Whitcher, of the New Hampshire Agri- 

 cultural Experiment Station, made analyses of four different varie- 

 ties at four stages of growth. J The four varieties were a southern 

 ensilage corn, a northern flint corn, Sanford (flint), and Pride of 

 the North (dent). The cuttings were made July 26, Aug. 5, Aug. 

 19, and Sept. 16. At the first date none were in tassel but the 

 northern flint ; at the last date the northern flint was completely 

 ripe, the Sanford and Pride of the North were nearly mature, and 

 the kernels of the southern ensilage were just blistering. Be- 

 tween Aug. 5th, at which time but one of the varieties had 

 passed the blossoming stage, and Sspt. 16th, there was an in- 

 crease in dry matter of 112 percent., in albumenoids of 50 per 

 cent., in fat of 84 per cent., and in carbhydjrates of 130 per cent. 



In 1888, at the Pennsylvania Agricultural Experiment Station, 

 Mr. Caldwell foundj that between the period of tasseling and 

 complete ripeness there was an average gain of dry matter of 155 

 per cent. Ten varieties of corn (dents and southern ensilage 

 corn) were used. Only the dry matter was determined. The 

 dates of cutting are not given, and the last determination was 

 made from the ears and stover cut and shocked as for grain. 



In 1889, at the New York Agricultural Experiment Station, a 

 very thorough investigation of this subject was made by Mr. 

 L,add, chemist of the station. || The variety used was King 

 Philip; the dates of cutting were July 30, Aug. 9, Aug. 21, Sept. 

 7, and Sept. 23, at which dates the condition of maturity was, re- 

 spectively, tasseled, silked, in milk, glazed, and ripe. The com- 

 putations were in each case based on the yield of a plot of a fifth 

 of an acre so taken as to represent the average of a field of twelve 



* Cornell University Agricultural Experiment Station Bull. IV, p. 52. 

 t New Hampshire Agricultural Experiment Station Bull. No. 3. 



X Pennsylvania Agricultural Experiment Station Bull. 7, p. 7. 

 || New York Agricultural Experiment Station 8th Ann. Rept, p. 



86. 



