Any man who goes into the business of raising alfalfa anywhere in the rain belt cannot well afford to ignore hay-caps as a part of his equipment. Comparatively the cost is slight and the trouble of using them small considered in the light of their great utility, although the expense, and the use and care of them may at first blush appear to be quite formidable. American haymakers do not seem to appreciate the bad effect of dew upon the color and aroma of all kinds of hay. Prof. F. H. Storer in his “Agriculture” (Vol. III, p. 559) says: “One advantage gained by the use of hay-caps to protect the cocks during the night, is that they hold in the raked-up warmth, and keep the hay from cooling off. Thus it happens that the hay not only improves a little as to dryness during the night, but is all ready to dry rapidly when the cocks are again exposed to the air and sunshine, on being uncovered in the morning. All this as a normal and constant benefit, to say nothing of the advantages derived from the caps in case light rains, or even heavy rains, should fall before the cocks are again opened. The caps keep dew from settling upon the hay, moreover, and thus prevent the loss of aromatic matters that would result if the dew were to dry off from the hay.” “With regard to the exclusion of dew, it is not alone its power to carry off aroma that should be considered. When dew ‘falls’ it must tend to carry with it any particles of solid matter that may happen to be in the air from which it is deposited, and, in this way the spores of fungi, such as would cause the hay to mold, are put upon it. It can scarcely be questioned that many of the organisms deposited with the dew are likely to promote hurtful decomposition, especially in case the hay should remain or become damp, and the less of these organisms that infest the hay the better it will be.” When the farmer considers that a ton of well-cured alfalfa hay is worth about as much as a ton of wheat bran, he ought to see that it is profitable to protect it from the rain and the dew. He would scarcely hesitate to provide suitable covering if he had several tons of bran in the field exposed to the elements. Hay-caps will soon pay for themselves by the finer quality of the hay they assure, aside from the larger quantity of the best grade that their protection guarantees.