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 3
... less auricled . Those of the branches are much narrower , and not only vary on the two forms of branch , but on different parts of each . If we look at a Sphagnum leaf in fluid with a sufficient power , the first thing that strikes us ...
... less auricled . Those of the branches are much narrower , and not only vary on the two forms of branch , but on different parts of each . If we look at a Sphagnum leaf in fluid with a sufficient power , the first thing that strikes us ...
Página 7
... less accompany objects seen by trans- mitted light , and cause an indistinctness of outline . * The only plan at present known to me of illuminating these and other dry test - objects is the one that I recently described , and consists ...
... less accompany objects seen by trans- mitted light , and cause an indistinctness of outline . * The only plan at present known to me of illuminating these and other dry test - objects is the one that I recently described , and consists ...
Página 9
... less dis- tinct . A combination of two rectangular prisms of crown glass , with a rectangular of very dense flint , and another of less dense , of such an angle as to give direct vision , turned towards the slit , as lately made for me ...
... less dis- tinct . A combination of two rectangular prisms of crown glass , with a rectangular of very dense flint , and another of less dense , of such an angle as to give direct vision , turned towards the slit , as lately made for me ...
Página 20
... less than half its original magnitude , the nucleus being com- pressed closely against the side of the prism . Or in cases where one or more crystals happened to lie across the long axis , that decreased until the whole corpuscle ...
... less than half its original magnitude , the nucleus being com- pressed closely against the side of the prism . Or in cases where one or more crystals happened to lie across the long axis , that decreased until the whole corpuscle ...
Página 22
... , and under its further action the disk gradually became less elongated , until it assumed a spheroidal form , the coloured portion being rapidly dissolved out , and leaving the nucleus and cell 22 22 On the Cellular Structure.
... , and under its further action the disk gradually became less elongated , until it assumed a spheroidal form , the coloured portion being rapidly dissolved out , and leaving the nucleus and cell 22 22 On the Cellular Structure.
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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...