. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Miscellaneous. 407 The cellulose is enormously dilated by the weaker solvent, and expands the external membrane into beautiful beads, which are doubtless the result of the spiral vessels acting as ligatures at the points of strangulation; at the open end of a fibre it can be seen oozing out as a mucilaginous substance. The stronger solution bursts the beads, or dissolves all the cellulose into a homogeneous mass, amidst which the empty cuticular membrane and the spiral vessels


. The Annals and magazine of natural history; zoology, botany, and geology. Natural history; Zoology; Botany; Geology. Miscellaneous. 407 The cellulose is enormously dilated by the weaker solvent, and expands the external membrane into beautiful beads, which are doubtless the result of the spiral vessels acting as ligatures at the points of strangulation; at the open end of a fibre it can be seen oozing out as a mucilaginous substance. The stronger solution bursts the beads, or dissolves all the cellulose into a homogeneous mass, amidst which the empty cuticular membrane and the spiral vessels remain nearly unacted upon. The substance called medullary matter is seen occupying the axes of the fibres; it is nearly insoluble in the solvents. It may be well seen projecting from the open end of a fibre where the cellulose is exuding, and often remains in situ when the fibre has quite disap- peared. It has many appearances of being a distinct body, but the author in some cases thought it might be only the thickened or modified inner cell-wall; in others it looked like a shrunk membrane, probably the dried-up primordial utricle. It is generally absent or indistinct in old cotton, or cotton which has been submitted to bleaching agents.—Proceedings of the Literary and Philosophical Society of Manchester, April 18G3. On a singular Malformation of the Beak and Foot in the Young of the Domestic Fowl. " Dear Sir,—With this I send you the body of the chicken I spoke to you about, the beak and feet of which bear a close resem- blance to those of a Parrot, and I beg your acceptance of it. " It may perhaps be as well if I state the circumstances which, it has occurred to me, may account for this freak of nature. I had one of the Parrot tribe, which, on account of the noise it made, was frequently placed in the yard where I kept a breed of white JIjKjfjffl bantam fowls. If any of these came near the Parrot's cage to pick up the food it scattered, it be- came much enrage


Size: 1773px × 1410px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookce, booksubjectbotany, booksubjectgeology, booksubjectzoology