. Cytology, with special reference to the metazoan nucleus. Cells; Cytology. Chondriosomes in the spermatogenesis of Blalta gennanica. (After Duesberg, , 1911.) The material is prepared by Beiida's method, and the chondriosomes are shown darker than the chromatin. A, resting spermatogonium, filamentar chondriosomes distributed through the cytoplasm ; B, telophase of a spermatogonia! division; chondriosomes mostly congregated in a bundle which is just cut across ; C, young spermatocyte I. ; D, pachytene stage, chondriosomes temporarily conceutrated 'outside pole of nucleus ; E. later propha
. Cytology, with special reference to the metazoan nucleus. Cells; Cytology. Chondriosomes in the spermatogenesis of Blalta gennanica. (After Duesberg, , 1911.) The material is prepared by Beiida's method, and the chondriosomes are shown darker than the chromatin. A, resting spermatogonium, filamentar chondriosomes distributed through the cytoplasm ; B, telophase of a spermatogonia! division; chondriosomes mostly congregated in a bundle which is just cut across ; C, young spermatocyte I. ; D, pachytene stage, chondriosomes temporarily conceutrated 'outside pole of nucleus ; E. later prophase I. ; F, metaphase I. ; G, young spermatid ; chondriosomes massed into the very conspicuous " Nebenkem " ; H, chondriosome mass divided into two ; I, the two chondriosome masses growing out into the tail of the spermatozoon, and clasping between them the axial filament; J, the chondriosome mass now forms a sheath round the axial filament, as shown in K, transverse section of the tail: L, ripe spermato- zoon under a lower magnification. (, axial filament of tail; ch, chondriosome mass ; »i, 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 Agar, Wilfred Eade, 1882-. London Macmillan
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectcells, bookyear1920
