the perfect appearance of life. A reproduction able specimen of them exists at the Conservatoire des The motion of the teeth is communicated to the rods, of the true song of all birds has been successfully ob- Arts et Metiers. We represent this herewith (Fig. 1). G and E, behind the support, S.… … Fitr. 3.-UECHANICAL SINGING BIRD OF MODERN Fig. l.-MECHANICAL SINGING BIRDS OF THE CONSTRUCTION. EIGHTEENTH CENTURY. chewit, etc. We shall now explain the principle of the There has been an improvement introduced that con- closed in a cage, and the mechanism is contained in mechanism with which it…
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