. The cell in development and inheritance. Cells. 138 THE GERM-CELLS. G\' H K Fig. 67. — Spermatozoa of various animals. [A-I, L, from Ballowitz; J, K, from VON Brunn.] A (At the left). Beetle {Copris), partly macerated to show structure of fiagellum ; it con- sists of a supporting fibre {) and a fin-like envelope (/) ; n. nucleus; a. a. apical body divided into two .parts (the posterior of these is perhaps a part of the nucleus). B. Insect {Calathus), with barbed head and fin-membrane. C. Bird {PhyllopncHste). D. Bird (il//«f/V«/(7), showing spiral structure; nucleus divided into two part
. The cell in development and inheritance. Cells. 138 THE GERM-CELLS. G\' H K Fig. 67. — Spermatozoa of various animals. [A-I, L, from Ballowitz; J, K, from VON Brunn.] A (At the left). Beetle {Copris), partly macerated to show structure of fiagellum ; it con- sists of a supporting fibre {) and a fin-like envelope (/) ; n. nucleus; a. a. apical body divided into two .parts (the posterior of these is perhaps a part of the nucleus). B. Insect {Calathus), with barbed head and fin-membrane. C. Bird {PhyllopncHste). D. Bird (il//«f/V«/(7), showing spiral structure; nucleus divided into two parts («i, ifi) ; no distinct middle-piece. E. Bulfinch; spiral membrane of head. F. Gull {Larus) with spiral middle-piece and apical knob. G. H. Giant spermatozoon and ordinary form of Tadoriia. I. Ordinary form of the same stained, showing apex nucleus, middle-piece and flagellum. J. " Vermiform spermatozoon " and. A', ordinary spermatozoon of the snail Paliidina. L. Snake {Coluber), showing apical body (a), nucleus, greatly elongated middle-piece (w). and fiagellum (/).. 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, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcells, bookyear1911
