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Scientific American, Vol. 35, No. 24 (December 1876) (1876)

leaf 6

An illustration from Scientific American, Vol. 35, No. 24 (December 1876), 1876, leaf 6
^tUutiiu ^mttmn. December 9, 1876.] 373 the body, we proceed as follows: Fig. 121 represents tbe ap- Turning to the other half of the branch, we perform upon and with fall confidence in their almost absolute truthful- plication of a peculiar trammel designed for this and simi- it the same… … To represent the true path of the earth would require a turned bar or rod of metal, A, of about half an inch diame gouge the intervening timber from between the curve lines. section of over one hundred feet in length, of an arc of one ter, and upon it slides the piece of brass tube, B, upon which…

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