Quarterly Journal of Microscopical Science, Band 5J. and A. Churchill, 1865 |
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amoeboid angles animal Annelida aperture appearance Barbadoes deposit beautiful become belonging body Cambridge estate canals cellules centre character ciliated colour contained contractile costæ Crustacea crystals described diameter diatom distinct duct earthworm Echinodermata efferent Entomostraca examination exhibited extremely fact fibres filaments fluid Foraminifera front view frustule genus gland glass gonidia granular granules Grev.-Valve Gromia horns hyaline inch Johnson Journal laminæ lines margin matter membrane microscope Microscopical Society microscopists minute puncta municated nature nerves nervous nucleus objects observations oviduct paper papillæ pedicellariæ plant plates Polycystina portion present primordial cells prism processes Professor protoplasmic pseudopodia radiating raphides regard remarkable Rhizopods sarcode seen segment organs side siliceous slides species specimens spermatozoid spines Stephanosphæra structure substance surface Synapta terminal theth tion tissue transverse Triceratium tubes valve vas deferens vascular vegetable vesicle vessels vinegar Volvox whilst zoospores
Beliebte Passagen
Seite 1 - Nerves, Vessels, and Air-tubes (in the case of insects) to the Contractile Tissue of Muscle.
Seite 167 - If they be parasites, to what class and order do they belong ? What is their nature, what their food? Truly these are puzzling questions. These organs, or creatures, have now been known for many years, have been examined and admired by many naturalists and anatomists, have been carefully studied and accurately delineated, and yet we know not what they are.
Seite 266 - ... nervous supply at one single point only — -I have been led to conclude that every muscular fibre is crossed by very delicate nerve-fibres, frequently, and at short intervals, the intervals varying much in different cases, but, I believe, never being of greater extent than the intervals between the capillary vessels.
Seite 283 - O'Neill made a communication to this section, " On the Appearance of Cotton Fibre during Solution and Disintegration ;" these experiments referred to the application of Schweizer's solution of copper and ammonia. "Under the action of this solvent Mr. O'Neill considers that cotton exhibits spiral vessels situated either inside or outside the external membrane. In a paper read by the same gentleman, on the 18th of May, 1863, it is stated that spiral vessels are seen • See Mr.
Seite 47 - April, 1863, a man fell a distance of twelve feet to the ground, by which the skin of the right leg was said to be severely bruised. On the llth of May he complained of stiff-neck, and some difficulty of deglutition. In the night his mouth became quite closed, and he had several fits of severe dyspnoea, accompanied by contraction of the muscles of the back. On the following day the surface of the body became cold and clammy, with large drops of sweat on his forehead. When lying supine on the bed,...
Seite 260 - SCIENCE GOSSIP. A Monthly Medium of Interchange and Gossip for Students and Lovers of Nature. Edited by JE TAYLOR, FLS, FGS, &c. Price Fourpence, or by post Fivepence.
Seite 80 - ... selenite plate, with a two-thirds object-glass. A coloured stripe is visible in the passage of the burnisher, showing that the surface of the glass has been placed in a state of tension in the direction of the line. The glass, too, seems not altogether devoid of plasticity, for the waves of colour show that it has been carried forward in ripples, resembling the mark left on a leather-bound book after the passage of a blunt point. It may be inferred from this that the mere burnishing of the surface...
Seite 286 - The pseudoscopic effects are exaggerated by using a prism to each eye, but in most persons this produces a painful sensation. The explanation of these phenomena, which I offer with some hesitation, is based upon the supposition that in binocular vision we estimate the distance of an object by the degree of convergence of the optic axes. In these experiments, when a flat surface appears concave by the interposition of the prism : the optic axes are made to converge on a point situated behind the real...
Seite 285 - Long after the complete dissolution of the cellulose has taken place the external membrane remains just as the rotations or twistings had left it, some portions in the form of rings, which had been the ligatures between the bulbous expansions, other portions as irregular spirals. The cell contents also remain as twisted corrugations. From the observed difference in solubility between the cellulose and the external and internal matter, I should imagine a difference in constitution.
Seite 136 - A small piece of paper, or of gummed label (u), three fourths of an inch long and one fourth of an inch wide, attached to the upper surface of the slide, where it overlaps the finding-line, completes this simple apparatus.