Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 817
ig. 4 when the markings areat right angles to the direction of the light, and in fig. 5 when theylie in the same direction as the light with their narrow ends point-ing to it. When this last direction is reversed, the light from thepoints is so slight, that the scales appear to have lost their… … Scale of Machilispolypoda. * See Mr. Joseph Beck, in Sir J. Lubbocks Monograph, p. 255. STEUCTUKE OF TEST-SCALES. 731 longitudinal continuity may be traced between the exclamation-marks in the ordinary test-scale; but this is much more apparentin other scales from the same species (Fig. 420), as…
Microscopy · Biology
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