The Monthly Microscopical Journal: Transactions of the Royal Microscopical Society, and Record of Histological Research at Home and Abroad, Volumen6Robert Hardwicke, 1871 |
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Página 20
... condition of the sur- rounding air , I have seen this process of crystallization go on until the contents of almost every corpuscle assumes the crystalline form , either wholly or in part , the cell wall being left in the former case ...
... condition of the sur- rounding air , I have seen this process of crystallization go on until the contents of almost every corpuscle assumes the crystalline form , either wholly or in part , the cell wall being left in the former case ...
Página 21
... condition . Again , perhaps it will be asserted , secondly , that the appearances here presented might be simply the result of par- tial crystallization in such a drop of viscid material as Professors Flint and Beale consider the red ...
... condition . Again , perhaps it will be asserted , secondly , that the appearances here presented might be simply the result of par- tial crystallization in such a drop of viscid material as Professors Flint and Beale consider the red ...
Página 30
... condition of things shown in my photograph of the nineteenth band . I do not think anyone could tell by mere inspection either of the photograph or of the image in the microscope , if the focal adjustment remains unaltered , which was ...
... condition of things shown in my photograph of the nineteenth band . I do not think anyone could tell by mere inspection either of the photograph or of the image in the microscope , if the focal adjustment remains unaltered , which was ...
Página 32
... conditions in the case of the diatoms are so different from what we have to deal with on the plate , that I cannot see that the one conclusion follows from the other . The lines of the plate are minute grooves on the under - surface of ...
... conditions in the case of the diatoms are so different from what we have to deal with on the plate , that I cannot see that the one conclusion follows from the other . The lines of the plate are minute grooves on the under - surface of ...
Página 51
... condition of the bones , which were simply indicated by some soft masses , which readily broke down with the slightest touch . The bones were much blackened ; and on cutting through them for ex- amination under the microscope , he found ...
... condition of the bones , which were simply indicated by some soft masses , which readily broke down with the slightest touch . The bones were much blackened ; and on cutting through them for ex- amination under the microscope , he found ...
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achromatic achromatic condenser acid Amoeba animal aperture appearance arch balsam blood body Canada balsam cells chelifer chlorophyll chromic acid cilia Cloth containing corpuscles described diameters diatoms disease ditto eggs Euglena examination exhibited experiments eye-piece ferns fluid focus follicles frustules Fungi germinal glass granular Hennah illumination Illustrated immersion inch Infusoria insects instrument JOHN GILBERT BAKER larvæ layer lens light lines London magnified membrane micrometer microscopists minute Monads Monthly Microscopical Journal mosses Natural History nineteenth band nucleus objects observed obtained Optician ordinary organisms Oxytricha paper Paramecium parasite particles photographs PICCADILLY pin-point Monad plants present prism Professor R. A. PROCTOR rays remarks ROBERT HARDWICKE Rotifer ROYAL MICROSCOPICAL SOCIETY scales seen selenite slide solution species specimens spectra spectrum structure substance surface tion tissue Tolles tube Vaucheria vesicle Vorticella whole-page plates Wigmore Street Wonfor Woodward worm
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Página 97 - On the whole, then, while giving due credit to Prof. Huxley and those who have preceded him in this matter, for directing attention to this curious and no doubt important constituent of mineral fuel, and admitting that I may possibly have given too little attention to it, I must maintain that Sporangite beds are exceptional among coals, and that cortical and woody matters are the most abundant ingredients in all the ordinary kinds; and to this I cannot think that the coals of England constitute an...
Página 99 - A single trunk of sigillaria in an erect forest presents an epitome of a coal-seam. Its roots represent the stigmaria underclay; its bark the compact coal; its woody axis the mineral charcoal ; its fallen leaves and fruits, with remains of herbaceous plants growing in its shade, mixed with a little earthy matter, the layers of coarse coal. The condition of the durable outer bark of erect trees, concurs with the chemical theory of coal, in showing the especial suitableness of this kind of tissue for...
Página 99 - Stigmaria underclay; its bark the compact coal; its woody axis, the mineral charcoal; its fallen leaves (and fruits), with remains of herbaceous plants growing in its shade, mixed with a little earthy matter, the layers of coarse coal. The condition of the durable outer bark of erect trees concurs with the chemical theory of coal, in showing the especial suitableness of this kind of tissue for the production of the purer compact coals. It is also probable that the comparative impermeability of the...
Página 241 - These laminee are separated by short vertical piles of cells, believed to be medullary rays. In the transverse section the intersected mouths of the vessels form radiating lines ; and the whole structure is regarded as an early type of an exogenous cylinder; it is from this cylinder alone that the vascular bundles going to the leaves are given off. This woody zone is surrounded by a very thick cortical layer, which is parenchymatous...