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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... obtained without tedious labour . " - Mining Journal . London : ROBERT HARDWICKE , 192 , Piccadilly , W. DR . LANKESTER ON FOOD , AND ON THE USES OF ANIMALS , in Relation to the Industry of Man . A Course of Lectures delivered at the ...
... obtained without tedious labour . " - Mining Journal . London : ROBERT HARDWICKE , 192 , Piccadilly , W. DR . LANKESTER ON FOOD , AND ON THE USES OF ANIMALS , in Relation to the Industry of Man . A Course of Lectures delivered at the ...
Página 6
... obtain , and it is seldom that a fortunate accident occurs in the way shown . It was by fragments that the structure of the diatoms became known , wherein the silicious nodules could be traced down to a single atom , and their form is ...
... obtain , and it is seldom that a fortunate accident occurs in the way shown . It was by fragments that the structure of the diatoms became known , wherein the silicious nodules could be traced down to a single atom , and their form is ...
Página 7
... obtain parallel light . A large bull's - eye condenser should be employed with its flat side towards the lamp : hold a sheet of paper over the plane mirror , and see that the light falls in the centre , and is of the same area as the ...
... obtain parallel light . A large bull's - eye condenser should be employed with its flat side towards the lamp : hold a sheet of paper over the plane mirror , and see that the light falls in the centre , and is of the same area as the ...
Página 10
... obtain the well - marked spectrum of deoxidized hæmatin , with one very dark and another much fainter band in the green , almost or quite invisible when the quantity is small . If too much citric acid or double tartrate had been added ...
... obtain the well - marked spectrum of deoxidized hæmatin , with one very dark and another much fainter band in the green , almost or quite invisible when the quantity is small . If too much citric acid or double tartrate had been added ...
Página 11
... obtained , as described above . That part of the stain , insoluble in water , which is chiefly hæmatin , may be ... obtain an excellent spectrum from a blood - stain nearly fifty years old . In very old stains all the methæmoglobin has ...
... obtained , as described above . That part of the stain , insoluble in water , which is chiefly hæmatin , may be ... obtain an excellent spectrum from a blood - stain nearly fifty years old . In very old stains all the methæmoglobin has ...
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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...