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Scientific American, Vol. 96, No. 8 (1907) (1907)

leaf 14

An illustration from Scientific American, Vol. 96, No. 8 (1907), 1907, leaf 14
t, layers of skin you know you have, but knowing how blow, as it will under the gradually increasing pres- and jammed so that it could not be removed without easily a needlé prick will draw blood, you are aston. sure ordinarily used in testing. The experiments are ished to find what a good thick… … taken to determine the effect of constant worse than pig or goat skin.” vibration on the strength of wood. Very injudiciously Mr. Hansell informed ——_—_—_#+ +e —— him that it was human leather. At that the During 1905 the oilfields of the United workman dropped the half-finished saddle, States…

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