. Animal mechanism: a treatise on terrestrial and aërial locomotion. Animal locomotion; Flight. DESCRIPTION OF APPARATUS. 149 connected at its upper extremity with a kind of hinge, whilst its lower end is fastened by a solid wire to the upper face of the india-rubber box, on which it presses by means of a flat disc. On a wire parallel to the slip of copper slides a ball of lead, the position of which can be varied in order to in- crease or diminish the pressure which this jointed apparatus exerts on the india-rubber box. The function of this apparatus is analogous with that of the instrument r
. Animal mechanism: a treatise on terrestrial and aërial locomotion. Animal locomotion; Flight. DESCRIPTION OF APPARATUS. 149 connected at its upper extremity with a kind of hinge, whilst its lower end is fastened by a solid wire to the upper face of the india-rubber box, on which it presses by means of a flat disc. On a wire parallel to the slip of copper slides a ball of lead, the position of which can be varied in order to in- crease or diminish the pressure which this jointed apparatus exerts on the india-rubber box. The function of this apparatus is analogous with that of the instrument re- presented in fig. 28, in- tended to show the re- actions which are produced in various kinds of loco- motion ; only the inclina- tion of the oscillating por- tions allows them to act on the membrane during the movement of the elevation, the descent, and the hori- zontal progress of the foot. When the hoof meets the ground the ball has a tendency to continue its motion, and compresses with force the india-rubber box. When the foot rises, the inertia of the ball produces in its turn a compression by a kind of mechanism already described with reference to fig. 28. Through the kindness of Mons. Pellier, we have been able to experiment on several horses, ridden by himself, while holding in his hand the registering Fig. 43.—Apparatus to give the signals of the pressure and rise of the horse's Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marey, Etienne-Jules, 1830-1904. New York, D. Appleton and co.
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectflight, bookyear1874
