Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 868
ade to rotate. A curiousmodification of the ordi-nary structure of Horn ispresented in the appen-dage borne by the Rhino-ceros upon its snout,which in many points re-sembles a bundle of hairs, its substance being ar- • • • ranged m minute cylin-ders around a number ofseparate centres, whichhave… … Transverse section of Horn of Itliinoccros,viewed by Polarized Light. 782 VEETEBKATED ANIMALS. Starch-grains; and the light and shadow of this cross are replacedby contrasted colours when the Selenite plate is interposed.—Thesubstance commonly but erroneously termed whalebone, which isformed from…
Microscopy · Biology
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