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Scientific American, Vol. 40, No. 6 (1879) (1879)

leaf 7

An illustration from Scientific American, Vol. 40, No. 6 (1879), 1879, leaf 7
r be taught in every village school, without exception, and dent become inverted. The draught holes which are covered they have for some time formed part of the course of edu- by the damper, C, are provided with a perforated metal of the leather flap, and rests upon a cross bar that projects a… … is a description of a remarkable machine, designed and con- PEASE’S SPRING BOOT HEEL, | structed last summer by a student at the University of Penn- sylvania, Frank T. Freeland, class of 1879. It iscalled “an ' Automatic Tit-tat-to Machine,” and with it any one can play short distance from the…

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