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Scientific American, Vol. 22, No. 5 (January 1870) (1870)

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An illustration from Scientific American, Vol. 22, No. 5 (January 1870), 1870, leaf 0
lamps, thereby preventing the en- were exposed to green illumination only, they would be vir- horse power, for the operations of seeding, harrowing, and trance of foul air, or air which has become mixed with fire- tually in the dark. The light which the vegetable world cultivating, which in the… … ment. He also satisfactory man- TAVEAU'S REVOLVING SULKY HARROW AND BROADCAST SEEDER. dwells upon the ner. salubrious influences of sunshine. He mentions cases of pa- hight with glass; the upper half they prefer to make of sheet The depth of the harrowing is controlled by the driver, tients whose…

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