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Scientific American, Vol. 37, No. 11 (1877) (1877)

leaf 4

An illustration from Scientific American, Vol. 37, No. 11 (1877), 1877, leaf 4
ectrum B by light from the western or retreating one. A In setting to work, the hemp rope, which is driven from side supports, A, Fig. 2, of the ladder are made of webbing By a very minute but per- a V groove in the flywheel of a portable engine, is led round the field on pulleys and porters, and… … telluric lines retain their continuity, assur- from the design of Mr. J. H. Knight, of Farn- KNIGHT’S HOP CULTIVATOR. ing us that no mal-adjustment has occurred. ham. It will be admitted that this change is, if real, excellent B. The latter have studs or arms of wood, C, fixed into their St 8…

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