North attained its full height August 19, and the Northern Field 

 and Sanford, Aug. 5, 



In general the weight per stalk increased in about the same 

 ratio as the height until August 19, while after that, and until 

 September 16, in each variety there was a falling off in weight, 

 •caused, no doubt, by a loss of water in the stalks. 



September 16 the height of the 

 Southern corn was 12 ft., weight per stalk, 47 ounces, 



Pride of the North was 9^^ ft., " " 27.8 " 



Sanford was 8 ft., " " 27.6 " 



Northern Field was 8 ft., " " 22.4 " 



The degree of maturity, as shown by the various external 

 changes, such as tasseling, throwing out silk, blistering of kernel, 

 kernel in boiling stage, and maturity of kernel, were all record- 

 ed, and in the following table are given the date at which these 

 several stages were reached by each variety : 



Kind of Corn. 



Southern, 



Northern Field, 



Sanford, 



Pride of the North, 



Greatest 

 Height. Weight 



Sept. 16 

 AuR. 5 

 Aug. 19 

 Aug. 19 



Aug. 19 

 Aug. 5 

 Aug. 19 

 Aug. 19 



Tassel- 

 ing. 



Aug. 19 

 July 26 

 Aug. 5 

 Aug. 5 



Date of 



c-ii,- I Kernel i Kernel i Kernel 

 bilking. Blister'g ! full. Matur'd 



Aug. 19 Sept. 16 Sept.zs 



Aug. 5 Aug. 5 ' Aug. 19 j Sept.i6 



Aug. 19 Aug. 19 ] Sept. 16 Sept.to 



Aug. s Aug. 5 i Aug. 19 I Sept.2o 



It will be observed that in all but the Minnesota corn (Pride 

 of the North) the time of maximum weight and " silking " were 

 the same, hence, so far as tons per acre are concerned, the crop 

 could have been cut at that time to the best advantage. The 

 period between "silking" and "full" kernel, or when in the 

 boiling stage, was as follows : Southern corn, thirty-seven days ; 

 Northern field corn, fourteen days ; Sanford, twenty-eight days ; 

 Pride of the North, fourteen days. 



The Pride of the North is a dent corn, which is but little 

 behind the flint variety grown in this region, and it matures its 

 seed very well in favorable seasons, the small yield is against it, 

 however. The Northern flint lead the varieties in earliness and, 

 as will be seen by the yield per acre, was not exceeded by any 

 except the Southern corn? 



It appears that while the Sanford was from ten to fourteen 

 days later than the Northern field, it was well matured by Sep- 

 tember 15, and produced practically the same weight per acre 

 at nearly the same cost per ton. 



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