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Full text of "Man In The Modern World"

22.  Bursaria (21) enlarged.

23.  A human unfertilized ovum.

24.  A human sperm.

25.  A cheese-mite.

26.  A human gland-cell.

27.  The gland-cell (26) enlarged.
28.  A human red blood-corpuscle.
29.  A very large bacterium.
30.  A small bacterium.
31.  'An ultramicroscopic filter-passing rims.
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