Journal of the Royal Microscopical SocietyWilliams & Norgate, 1885 |
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Andre udgaver - Se alle
Almindelige termer og sætninger
7th Ann acid alcohol Amer animals Annelids aperture apparatus appears archegonium arrangement Ascidians axis Bacillus bacteria balsam blastopore body cavity cells central Centralbl cephalothorax chitinous chlorophyll cilia colour condenser condition connected containing Decapoda described diameter diatoms division dorsal ectoderm embryo Engl epidermis examined filaments flagella flagellum fluid formation genus germinal vesicle germination glands glass granules Ibid illumination Journ Journal large number larvæ latter layer lens lenses light Mech membrane mesoderm method Micr Microscope microscopists microtome Mikr minute mode mounting muscles nervous system nucleus object oblique observed obtained optical ordinary organs paper paraffin placed plants plate portion posterior Proc prothallium protoplasm refractive Rotifer screw sections seen segments shown in fig side slide Society solution species specimens spermatozoa sporangium spores stage staining stomata structure substance supra surface thickness tissue tube vegetable Wiss Zeitschr Zool
Populære passager
Side 81 - Ophthalmia neonatorum, or inflammation of the eyes of newborn babies, is one of the commonest and at the same time one of the most dangerous maladies of the eyes to which the child is subject. It is not confined to the tenement house district ; it may occur in any class of society.
Side 177 - If the law of actual variation, with all that is involved in survival of the fittest, could be so readily brought into complete operation, and yield so pronounced a result, where would be the stability of the organic world? Nothing would be at one stay. There could be no permanence in anything living.
Side 143 - Beginnings with the Microscope. A working handbook containing simple instructions in the art and method of using the microscope, and preparing articles for examination.
Side 527 - ... of increasing the field of view. It consists of two plano-convex lenses, with their plane sides towards the eye, and placed at a distance apart equal to half the sum of their focal lengths, with a stop or diaphragm placed midway between the lenses.
Side 365 - He had therefore great pleasure in moving that the best thanks of the Society be given to the President for his admirable address.
Side 411 - Other fruits have been figured by Brongniart, Lindley and Hutton, Binney, Professor "Williamson, of Manchester, and others. The latter pointed out the occurrence of both macrospores and microspores in coal, in a paper read before the Geological Section of the British Association at York, but I am not aware that the paper has been printed except in abstract. In the ' Philosophical Transactions,' Professor Williamson figures a Calamostachys Binneyana, which shows two kinds of spores.
Side 160 - Per cent) and thence to picrocarmine, reduction taking place during the process , or the osmic acid may be added after the silver has been already reduced in the potassic nitrate. In successful preparations made in the above manner , the limits...
Side 40 - From time to time, among some sediment taken from a water-cooler, the gentleman had observed what he supposed to be living worms, which he suspected were introduced with the water into the cooler and not with the ice. Upon melting some of the ice alone the worms were still observed, and the water submitted for examination was some that was thus obtained. Prof. Leidy was surprised to find a number of worms amongsome flocculent sediment, mainly consisting of vegetal hairs and other debris.
Side 79 - ... such matters may have correspondingly different functions, and that it does not necessarily follow that the green granules even are a sure indication of the presence of true chlorophyll, though it may simulate that of the plant in its relation to the stratum of plasma covering the cell-wall. Why not suppose that some of these coloring matters of Infusorians have a function similar to haemoglobin ? It would, however, be much easier to suppose that the quasi-chlorophyll grains of V.
Side 327 - ... patience in getting them in position, until at last he sees the specimen, and is ready to clean and pack away his apparatus. His series of objectives is his glory ; and he possesses a fifteenth of Smith and Brown, which will resolve a band of Nobert's not to be resolved by the objectives of any of his friends. His instrument is his pet : about it his interest centres, while the direction of his studies is determined, not by any natural bond between the objects, but by the common quality of minuteness....