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Caption: Board of Trustees Minutes - 1880
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58 EFFECTS OF CLIMATE ON VARIETIES. While selection has much to do with the time of ripening and other characteristics of varieties grown in any one locality, it is well known that there are certain characteristics which are pretty constantly found to vary with the climate To observe some of these peculiarities, varieties of Dent corn, furnished by Prof. Lacy, of the University of Minnesota, at Minneapolis, and by Wm. Lyraght, of Belleville, Wisconsin, wTere planted in the same plat with the white Dent, furnished by Eev. J. M. Faris, of Anna, Illinois, Blount's Prolific and other varieties longer grown on the Experimental farm. The planting was done May 12-14. The more southern varieties made much larger growth, and were considerably later in time of tasseling. The Minnesota, Wisconsin and a New England Flint variety showed the first tassels, from July 5 to 7. Blount's Prolific and the " A n n a " corn did not show tassels until from July 16 to 18. The northern varieties were fully ripened by August 20. The "Anna" corn was not fully matured before October 15. SHRINKAGE AND P E R CENT. OF COB. As shown in the report of Prof. ScoyelL, Agricultural Chemist, the average shrinkage of ten ears of each of six varieties of yellow Dent corn, gathered October 6, 1879—when all was fairly matured except one variety—and kept in a warm room until February 28, 1880, was 12.1, 16.8, 17.4, 22.5, 22.8, and 33 per cent. The percentage of cob at same date, taking varieties in same order, was 12.3, 16, 12.6, 15, 11 and 14.4—the average being 13.7 per cent. In another trial, in 1880, of corn well dried in a warm room, the average percentage of cob in specimen ears of fourteen Dent varieties was a little over 14. The varieties were from 10 to a little over 20 per cent. The weight of the cob varied from one ounce to two and one-fourth ounces. FARM LEVELING INSTRUMENT. BY I. 0 . BAKER, C. E., Professor of Civil Engineering. It is a well known fact that the eye, unaided by instruments, can not determine the lay of the ground with precision sufficient for drainage purposes. In many cases, there is no doubt that the slope is sufficient, and in these cases it is easy to keep on the safe side. On the other hand, where there is but slight fall, some kind of an
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