. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Volvox Globator, much magnified. destruction of the original Volvox to escape from their imprisonment. It was Ehrenberg* who first made the dis- covery that these beautiful living globes were not, as had until then been universally believed, single animalcules producing gemmules in the interior of their transparent bodies, which on arriving at maturity by their escape through the lacerated integument of the parent termi- nated its existence, but that they formed in reality the residences of numerous individuals living to
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Volvox Globator, much magnified. destruction of the original Volvox to escape from their imprisonment. It was Ehrenberg* who first made the dis- covery that these beautiful living globes were not, as had until then been universally believed, single animalcules producing gemmules in the interior of their transparent bodies, which on arriving at maturity by their escape through the lacerated integument of the parent termi- nated its existence, but that they formed in reality the residences of numerous individuals living together in a wonderful community. This great observer had long remarked that the Volvoces appeared to take no food, neither were any of those vesicles discernible in their interior which in all other races of Infusoria he regards as the organs of nutrition—a circum- stance which, considering their very great size when compared with other races, was well calculated to arrest attention; and he soon found that the structure of their nutritive appa- tus lies much deeper and is of a far more delicate character than any one could have previously anticipated. On attentively examining with glasses of high power (1000 diameters) the minute green specks which stud the transparent covering of * Abhandlungen der Koniglichen Academic der Wissenschaften zu Berlin, Jahr 1833, p. 328. the Volvox, and which he had previously re- garded as the bulbous roots of locomotive cilia, he perceived in each corpuscle a bright red point, and moreover discerned that instead of its being a cilium which was appended thereto, it was a whip-like moveable proboscis exactly similar to that of the Monads described above ; and further observation convinced him that every green point was in reality a distinctly organised Monad, possessing mouth, eye, sto- machs, generative apparatus, and, in fact, all the viscera attributed by Ehrenberg to the free Monadinidae, and that the Volvox was entirely made up of an assoc
Size: 1959px × 1276px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, booksubjectanatomy, booksubjectphysiology, booksubjectzoology
