The larger part of this bulletin considers "methods of planting and tests of varieties" of potatoes, by L. F. Kinney. "This season, two-eye pieces planted 18 inches apart has given the best results; the average yield by this method being more than eleven per cent, greater than when single eye pieces were planted 9 inches apart, and nearly twenty-eight per cent. greater than when whole potatoes were planted 36 inches apart. The average proportion of small potatoes was, however, this season, largest with two eyes, and slightly less with single eyes than with whole tubers. As a rule, the heaviest potatoes grew where whole potatoes were planted".

One hundred varieties of potatoes were from Connecticut (lat. 410), and fourteen were from Wisconsin (lat. 440). The average yield was greater from the Wisconsin seed, but the results were such that" no deductions of value can be safely made." A test of the influence of latitude should consider that longitude is often an important factor in plant variation, as climatic conditions do not follow degrees of latitude. Seed should be selected so far as possible from similar longitudes for such comparisons.