. The cell in development and inheritance. Cells. I02 THE GERM-CELLS. C H K Fig. 49.—Spermatozoa of various animals. [A~I, L, from Ballowitz ; y, A", from voN Brunn.] A. (At the left). Beetle (Cc//-m), partly macerated to show structure of fiagellum ; it con- sists of a supporting fibre {) and a fin-like envelope (/.) ; tt. nucleus; a. a. apical body divided into two pans (the posterior of these is perhaps a part of the nucleus). B. Insect (Calat/ius), with barbed head and fin-membrane. C. Bird {PhyUopneuste). D. Bird {Muscicnpa), showing spiral structure; nucleus divided into two par
. The cell in development and inheritance. Cells. I02 THE GERM-CELLS. C H K Fig. 49.—Spermatozoa of various animals. [A~I, L, from Ballowitz ; y, A", from voN Brunn.] A. (At the left). Beetle (Cc//-m), partly macerated to show structure of fiagellum ; it con- sists of a supporting fibre {) and a fin-like envelope (/.) ; tt. nucleus; a. a. apical body divided into two pans (the posterior of these is perhaps a part of the nucleus). B. Insect (Calat/ius), with barbed head and fin-membrane. C. Bird {PhyUopneuste). D. Bird {Muscicnpa), showing spiral structure; nucleus divided into two parts («i, //-) ; no distinct middle-piece. E. Bulfinch; spiral membrane of head. F. Gull (Lartis) with spiral middle-piece and apical knob. G. H. Giant spermatozoon and ordinary form of Tiidonia. /. Ordinary form of the same stained, showing apex, nucleus, middle-piece and flagellum. y. "Vermiform spermatozoon" and, K. ordinary spermatozoon of the snail Paludina. L. Snake {Coluber), showing apical body {a), nucleus, greatly elongated middle-piece (m), and flagellum ( f).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Wilson, Edmund B. (Edmund Beecher), 1856-1939. New York : The Macmillan company
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectcells, bookyear1896
