. Farm implements, and the principles of their construction and use; an elementary and familiar treatise on mechanics, and on natural philosophy generally, as applied to the ordinary practices of agriculture ... inches to thirty. Itshows the oblique angle at which they run—this obliq-uity being easily altered to any desired degree: this iseffected by a movement of the upper handle represent-ed in the figure. By the lower handle the whole isaccurately guided. It is said that two men, one to leadthe horse, and the other to guide the implement, willdress ten acres of root-crops in a single day, a
. Farm implements, and the principles of their construction and use; an elementary and familiar treatise on mechanics, and on natural philosophy generally, as applied to the ordinary practices of agriculture ... inches to thirty. Itshows the oblique angle at which they run—this obliq-uity being easily altered to any desired degree: this iseffected by a movement of the upper handle represent-ed in the figure. By the lower handle the whole isaccurately guided. It is said that two men, one to leadthe horse, and the other to guide the implement, willdress ten acres of root-crops in a single day, and that ithas proved eminently a labor-saving machine. CLOD-CRUSHERS. In clayey soils, clods are often formed in abundanceduring the process of cultivation. These become veryhard in dry weather, and prevent the proper extensionof the fine roots of pl?nts in search of nourishment, andalso the intermixture of manure with the soil, withoutwhich it has been found that two thirds or even threefourths of the value of manure is lost to growing crops. Different modes of pulverizing the clods have beenadopted. The simplest is the drag-roller, repre-sented in Fig. 124. It is made of a log or portion of Fig. Clod-crusher. a hollow tree, into which a common two-horse wagon CLOD-CRUSHERS. 147 tongue has been fitted, by which it is dragged overthe ground without rolling, grinding to powder, inits progress, every clod over which it passes. Thegreater the diameter of the log, the less will be the lia-bility of its clogging by gathering the clods before may also be made of a half log with the round sidedownward. Fig. 125 represents a similar implement Fig. 125.
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Keywords: ., bookcentury1800, bookdecade1850, bookpublishernewyo, bookyear1854
