Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 321
prolongedstudy of a given organism, is the object of this device. It consists ofa plain glass stage, fig. 250, a, a, so fitted as to slide on in the place ofthe ordinary sliding stage of a Powell and Lealand or Ross stand. Itis thus susceptible of the mechanical motions common to those stages.Its… … Fig. 249.—Maddoxs growing stage.
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