Evenings at the microscope : or, Researches among the minuter organs and forms of animal life (1884)
Gosse, Philip Henry, 1810-1888 · London : Society for Promoting Christian Knowledge · leaf 294
nge-likecalcareous matter, which, from the variously reflected andrefracted rays of light, appears nearly opaque, and of abluish colour by transmitted light. This structure sendsforth radiating points (making longitudinal ridges, ofcourse, in the perfect spine); and it is the opacity of thesepoints… … vBssbKsw open space left between these projecting radii is filledwith the solid glassy matter, having, as we see, a convexsurface. This, however, from its perfect transparency, isnot seen when we look at the side of the spine, the eyegoing down through the transparent matter to the bottomof the…
Zoology · Microscopy
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