Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 866
is a very thin and transparent cylinder; audit encloses thepeculiar fibrous substance that constitutes the principal part of theshaft of the hair. The constituent fibres of this substance, whichare marked-out by the delicate striae that may be traced in longi-tudinal sections of the hair (b), may… … Kill til
Microscopy · Biology
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