. The Family tutor . 276 NATURAL PHILOSOPHY. of the application of this class of levers are to be found in the structure of animals,particularly the arm and fore-arm of man, and the lower jaw, as shown in Figs. 151,and 152. In the former, the lower end of the arm-bone, a, becomes the fulcrum, the bones of the fore- / -Aarm, c, b, the lever, and the biceps flexor cubiti, d,.

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Keywords: ., bookcentury1800, bookdecade1850, bookpublisherlondo, bookyear1851