. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. 22 COMPABATIVE PHYSIOLOGY. Multiplication of the species is either by gemmation or by flsaim. In the first case the nucleus divides and the frag-. Bto.«. Fio. as. Fia. 80. FisB 84 to 40.—In the figures d denote* dtak; », lieriBtomo; ve, contractile vacuole; e^. fo^; vacuole; vi, vestibule; rf, contractile fiber; e, cyst; «e, nucleui; «/, cTllum. Pio at.—A group of vortlce
. A text-book of comparative physiology [microform] : for students and practitioners of comparative (veterinary) medicine. Physiology, Comparative; Veterinary physiology; Physiologie comparée; Physiologie vétérinaire. 22 COMPABATIVE PHYSIOLOGY. Multiplication of the species is either by gemmation or by flsaim. In the first case the nucleus divides and the frag-. Bto.«. Fio. as. Fia. 80. FisB 84 to 40.—In the figures d denote* dtak; », lieriBtomo; ve, contractile vacuole; e^. fo^; vacuole; vi, vestibule; rf, contractile fiber; e, cyst; «e, nucleui; «/, cTllum. Pio at.—A group of vortlcelliB ehowlng the crea- ture In various positions (A, 8). Fio 85—The same, In the extended and In the retracted state. (Surface views.) ^.^^„, . Fio. 86.^8howB food-vacuoles; one In the act or Fio'^-A'vorticella, in which the process of mnltlpllcatlon by fission U begun. Fio resulti of fission; ^e production of two Indivldnals of unequal size. Fio. of reproduction by conju- Fio.^.—An encysted yorticella. ments toe transformed into locomotive germs; in the latter the entire animal, including the nucleus, divides longitudi- nally, each half becoming a similar complete, independent oiv ganism. Still another method of reproduction is known. A more or less globular body encircled with a ring of cUiaand of relatively small size may sometimes be seen attached to the usual form of Yorticella, with which it finaUy becomes blended into one mass. This seems to foreshadow the " sexual ^Si^^'-ft^iS?^"''". 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 Mills, Wesley, 1847-1915. New York : D. Appleton; London : Caxton House
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Keywords: ., bookauthormillswes, bookcentury1800, bookdecade1890, bookyear1890
