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 9
... important advantages . The cells used for the experiments should be made from barometer tubing , and be about one - eighth of an inch in internal diameter , and half an inch long , one end being fastened to a piece of plate glass with ...
... important advantages . The cells used for the experiments should be made from barometer tubing , and be about one - eighth of an inch in internal diameter , and half an inch long , one end being fastened to a piece of plate glass with ...
Página 10
... importance . Very faint bands are best seen by lamplight . On exposure to the air in a damp place , a blood - stain may be completely decomposed by the growth of mould , but when not thus destroyed it is partly altered into hæmatin . If ...
... importance . Very faint bands are best seen by lamplight . On exposure to the air in a damp place , a blood - stain may be completely decomposed by the growth of mould , but when not thus destroyed it is partly altered into hæmatin . If ...
Página 11
... important to ascertain whether colour is dissolved from the fabric by dilute citric acid or dilute ammonia , and if so , to deter- mine whether this would in any way interfere with the recognition of blood by the processes described ...
... important to ascertain whether colour is dissolved from the fabric by dilute citric acid or dilute ammonia , and if so , to deter- mine whether this would in any way interfere with the recognition of blood by the processes described ...
Página 13
... important not to filter or allow the insoluble matter to subside , but to overcome the opacity by means of a sufficiently intense light . If the sun could not be made use of , the lime or electric light would no doubt be the best ...
... important not to filter or allow the insoluble matter to subside , but to overcome the opacity by means of a sufficiently intense light . If the sun could not be made use of , the lime or electric light would no doubt be the best ...
Página 14
... importance of being able to detect blood - stains on leather was prominently brought before me by a case in which the trial of a suspected person depended on the nature of certain dark marks on his gaiters . The presence of tannic acid ...
... importance of being able to detect blood - stains on leather was prominently brought before me by a case in which the trial of a suspected person depended on the nature of certain dark marks on his gaiters . The presence of tannic acid ...
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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...