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Scientific American, Vol. 32, No. 17 (1875) (1875)

leaf 9

An illustration from Scientific American, Vol. 32, No. 17 (1875), 1875, leaf 9
inating more than a very not tell; although we have which is represented at the point, I, below; again, at the limited number. And this brings us to the consideration of reached the extreme end of point, C, the effect of the motion of one curve below the the optic nerve, and have seen its wonderful… … fork is set in vibration by communicating with LEVEMAE OFLe The lecturer then proceeded to prove these important re- a body sounding its note; and so with the oth- sults by other means. When an image is presented quickly to the eye and then withdrawn, the eye retains the impres- sion for a short…

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