. Elementary text-book of zoology, tr. and ed. by Adam Sedgwick, with the assistance of F. G. Heathcote. FlG. 144.—a, Stylonychia mytiliis, in process of conjugation. The nucleus is depicted i uving division (Balbiani's so- called ova); the nucleoli have divided into four spheres (sup- posed spermcapsules). b, Stylonychia filled with parasitic Spfitfroj>>irya (after Balbiani).. FIG. 14S,—Stylonyeh!a myfllus in process of conjugation, slightly magnified, (treated with acetic acid), (after Biitschli). a. Stage of conjugation with two nucleoli (paranuclei); Nb, the four pieces into which th


. Elementary text-book of zoology, tr. and ed. by Adam Sedgwick, with the assistance of F. G. Heathcote. FlG. 144.—a, Stylonychia mytiliis, in process of conjugation. The nucleus is depicted i uving division (Balbiani's so- called ova); the nucleoli have divided into four spheres (sup- posed spermcapsules). b, Stylonychia filled with parasitic Spfitfroj>>irya (after Balbiani).. FIG. 14S,—Stylonyeh!a myfllus in process of conjugation, slightly magnified, (treated with acetic acid), (after Biitschli). a. Stage of conjugation with two nucleoli (paranuclei); Nb, the four pieces into which the nucleus has divided in each individual, b. Stage of conjuga- tion with four nucleoli, of these N' becomes the nucleus, and «' the two nucleoli; Jfb, tho four remaining pieces of the old nucleus, c, Stylouychia on the sixth day after conjuga- tion with nucleus and two nucleoli. fuse together to form a single oval body (Balbiani), the substance of which takes a finely fibrous structure previous to further fission,. 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 Claus, Carl, 1835-1899; Sedgwick, Adam, 1854-1913; Sinclair, F. G. (Frederick Granville), b. 1858. London, Swan Sonnenschein & co.


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