12 Microscope Slides.
1(d) Human scalp, vertical sec. shows l.s. of hair follicles
2(d) Human scalp, horizontal sec. shows t.s. of hair follicles
3(b) Natural blond and black hair
4(b) Grayed hair
6(b) Hair of beard
7(b) Hair from infant
8(b) Artificially bleached hair
9(b) Split hair tips
10(b) Singed hair
11(e) Eggs of louse attached to the hair, w.m.
12(f) Human head louse (Pediculus capitis), w.m.