. Cytology, with special reference to the metazoan nucleus. Cells. 68 CYTOLOGY Chondriosomes in the spermatogenesis of Blatta germanica. (After Duesberg, , 1911.) The matenal is prepared by Benda's method, and the chondriosomes are shown darker than the chromatm. A, resting spermatogonium, filamentar chondriosomes distributed through the cytoplasm; B, telophase of a spennatogonial division; chondriosomes mostly congregated in a bundle which is just cut across ; C, voung spermatocyte I. • D, pachytene stage, chondriosomes temporarily conceutrated outside pole of nucleus ; E later pro
. Cytology, with special reference to the metazoan nucleus. Cells. 68 CYTOLOGY Chondriosomes in the spermatogenesis of Blatta germanica. (After Duesberg, , 1911.) The matenal is prepared by Benda's method, and the chondriosomes are shown darker than the chromatm. A, resting spermatogonium, filamentar chondriosomes distributed through the cytoplasm; B, telophase of a spennatogonial division; chondriosomes mostly congregated in a bundle which is just cut across ; C, voung 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 " Nebenkern " • H chondriosome mass divided into two ; I, the two cbondriosome 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, npe spermato- zoon under a lower magnification. , axial filament of tail; ch, chondriosome mass ; n, 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
