In growing onions and other truck crops, where the rows are too close together for horse cultivation, the wheel hoe is valuable. In fact, it is almost indispensable when such crops are grown extensively. The best wheel hoes have a number of attachments. When the seed-bed has been carefully prepared, and the soil is fine and loose, the wheel hoe may be used as soon as the young plants show above ground. Men who are accustomed to operating a wheel hoe become expert. They can work almost as close to the growing plants with an implement of this kind as they can with an ordinary hand hoe. The wheel hoe, or hand cultivator, works the ground on both sides of the row at once, and it does it quickly, so that very little hand weeding is necessary. CHAPTER VI HANDLING THE HAY CROP REVOLVING HAYRAKE About the first contrivance for raking hay by horse power consisted of a stick eight or ten feet long with double-end teeth running through it, and pointing in two directions. These rakes were improved from time to time, until they reached perfection for this kind of tool. They have since been superseded by spring-tooth horse rakes, except for certain purposes. For pulling field peas, and some kinds of beans, the old style revolving horse rake is still in use. [Illustration: Figure 143.--Grass Hook, for working around borders where the lawn-mower is too clumsy.] [Illustration: Figure 144.--Revolving Hayrake. The center piece is 4" x 6" x 12' long. The teeth are double enders 1-3/8" square and 4' 6" long, which allows 24" of rake tooth clear of the center timber. Every stick in the rake is carefully selected. It is drawn by one horse. If the center teeth stick into the ground either the horse must stop instantly, or the rake must flop over, or there will be a repair job. This invention has never been improved upon for pulling Canada peas.]