The Transactions of the Microscopical Society of London, Volume 16John Churchill and Sons, 1868 |
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acid Algæ alkaloid animal aperture appearance Archer band blood body Busk cavity cells centre character cilia Claparède coccoliths colour contained corpuscles Crustacea crystals denticulate described diameter Diatomaceæ diatoms distinct Ditto Entomostraca Estheria examination exhibited fibres figures filaments Foraminifera fossil frustules Fungi genera genus glands glass globules granular granules Hogg hooked inch Infusoria JAMES GLAISHER Journal layer leaf Lichens lines magnified margin mass matter Median membrane micro microscope minute mycelium Navicula nerves Nobert noticed nucleus object-glass objects observed odontofore oogonium organs paper papillæ parasite peculiar plants plate Pleuræ portion present pseudopodia Pycnidia Radiolaria reflexed remarkable resemblance seen shell showed side silica similar slides Society solution species specimens spermatozoa Spermogonia spines spores striæ structure strychnine sublimates substance surface Synapta teeth tion tissue Trichodesmium tube Uncini valves veins venation Wallich whilst zygospore دو
Popular passages
Page 183 - President, in the Chair. The minutes of the preceding meeting were read and confirmed. The following gentlemen were duly elected Fellows of the.
Page 61 - When I was a bookseller's apprentice, I was very fond of experiment, and very averse to trade. It happened that a gentleman, a member of the Royal Institution, took me to hear some of Sir H. Davy's last lectures in Albemarle Street. I took notes, and afterwards wrote them out more fairly in a quarto volume. My desire to escape from trade, which I thought vicious and selfish, and to enter into the service of Science, which I imagined made its pursuers amiable and liberal, induced me at last to take...
Page 58 - President, in the Chair. The minutes of the previous meeting were read and confirmed. The following presents were announced, and thanks were ordered to be returned to the respective donors for the same : — FOE THE LIBRARY.
Page 57 - May 4. 1867. Report on Epidemic Cholera in the Army of the United States during the Year 1866.
Page 142 - ... establish only one on a sure foundation is sometimes the labour of months or years. In microscopical natural history as much scrutiny is required to prove a new form to be distinct from its allies as in chemistry to discover a new alkaloid, or in astronomy to demonstrate the identity of two comets. A naturalist cannot be too cautious. It is better to allow diatoms to remain in the depths of the sea, or in their native pools, than, from, imperfect materials, to elevate them to the rank of distinct...
Page 204 - By examining the fine granular matter of loose, unconsolidated chalk in water, and causing the ovoid bodies to turn round, I found that they are not flat discs, as described and figured by Ehrenberg, but, as shown in the oblique side view (fig. 5), concave on one side, and convex on. the other, and indeed of precisely such a form as would result from cutting out oval watch-glasses from a moderately thick, hollow glass sphere, whose diameter was a few times greater than their own. This is a shape...
Page 236 - By a line of close argument and observation he shows, from experiments with coloured fluids capable of entering the tissues without impairing vitality, and that not only in cuttings of plants, but in individuals in which the roots were uninjured, that the sap not only ascends by the vascular tissue, but that the same tissue acts in its turn as an absorbent, returning and distributing the sap which has been modified in the leaves. That this tissue acts some important part is clear from the constancy...
Page 233 - Few points are of greater significance than those which touch upon the intimate connection of animal and vegetable life. Fresh matter is constantly turning up, most clearly indicating that there are organisms in the vegetable kingdom which cannot be distinguished from animals. The curious observations which 1 ' Ann. des Sc. Nat .' 4 Sir. t. xx. (1865). * 'Joum. of Microsc. Science,
Page 239 - Germans in their familiar words seele and geist, but which we have no words in our language to express properly, or, in other terms, between mere mental powers, which the rest of the creation possess in greater or less degree in common with ourselves, and an immortal spirit, if rightly weighed, will, perhaps, lead some to look upon the matter with less fear and prejudice. Nothing can be more unfair, and, I may add, unwise, .than to stamp at once this and cognate speculations with the charge of irreligion....
Page 238 - Mr. Darwin says himself that he has not made histology an especial branch of study, and I have therefore less hesitation, though " impar congressus Achilli," in expressing an individual opinion that he has laid too much stress on free-cell formation, which is rather the exception than the rule. Assuming the general truth of the theory, that molecules endowed with certain attributes are cast off by the component cells of such infinitesimal minuteness as to be capable of circulating with the fluids,...