The Microscope: Its History, Construction, and Application, Being a Familiar Introduction to the Use of the Instrument and the Study of Microscopical ScienceRoutledge, Warne, and Routledge, 1861 - 621 páginas |
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The Microscope: Its History, Construction, and Application: Being a Familiar ... Jabez Hogg Sin vista previa disponible - 2015 |
The Microscope: Its History, Construction, and Application, Being a Familiar ... Jabez Hogg Sin vista previa disponible - 2015 |
Términos y frases comunes
acetic acid achromatic acid Actinia angle angular aperture animal animalcules aperture appear arrangement beautiful become body bone bone-cells calcareous Canada balsam canals cavity cells centre cilia colour composed compound consists covered creatures crystals curious delicate dentine deposited diameter disc distinct edge enclosed epithelium examined exhibit extremity eye-piece fibres filaments fluid Flustra focus Foraminifera gelatinous glass globules granules hairs Haversian canals horny illumination inch Infusoria insects larva larvæ layer length lens lenses lines magnified matter membrane ment micro microscope microscopist minute motion mounted mouth muscular nucleolus nucleus object object-glass observed organs piece placed plants plate polarised light polypes portion prism produced rays refraction resembling round seen shell side siliceous skin slide species specimens spherical aberration spicula spines sponges stage stem structure substance surface teeth tentacles thickness thin tion tissue tourmaline transparent transverse tube vegetable vessels Vorticella Zoophytes
Pasajes populares
Página 502 - This is dispensed ; and what surmounts the reach Of human sense I shall delineate so, By likening spiritual to corporal forms, As may express them best ; though what if earth Be but the shadow of heaven, and things therein Each to other like, more than on earth is thought...
Página 157 - ... somewhat ground away. The reflected rays are received at a proper distance for binocular vision upon two other rectangular prisms, and again bent at right angles, being thus either completely inverted, for an inverted microscope, or restored to their original direction.
Página 319 - All these things live and remain for ever for all uses, and they are all obedient. •• .•- * ' ."..... JIT. All things are double one against another : and he .hath made nothing imperfect.
Página 468 - ... easily employed by the insect in scraping or tearing delicate surfaces. It is by means of this curious structure that the busy House-fly often occasions much mischief to the covers of our books, by scraping off the white of egg and sugar varnish used to give them the polish, leaving traces of its depredations in the soiled and spotted appearance which it occasions on them. It is by means of these also that it teases us in the heat of summer, when it alights on the hand or face, to sip the perspiration...
Página 318 - Consider their incredible numbers, their universal distribution, their insatiable voracity; and that it is the particles of decaying vegetable and animal bodies which they are appointed to devour and assimilate. Surely we must in some degree be indebted to those ever active invisible scavengers for the salubrity of our atmosphere.
Página 356 - ... dying of an atrophy, the animal- had availed itself of what undoubtedly had been a very untoward accident, to increase its enjoyments and its chances of double fare A new mouth furnished with two rows of numerous tentacula, was opened up on what had been the base, and led to the understomach: the individual had indeed become a sort of Siamese twin, but with greater intimacy and extent in its unions
Página 530 - Now, each of these pores being the aperture of a little tube of about a quarter of an inch long, it follows that in a square inch of skin on the palm of the hand, there exists a length of tube equal to 882 inches, or 73i feet.
Página 393 - ... invisible. These animals are of a great variety of shapes and sizes, and in such prodigious numbers, that, in a short time, the whole surface of the rock appears to be alive and in motion. The most common...
Página 307 - These beds are covered by others of a peculiar soft white stone, including much gypsum, and resembling chalk, but really of a pumiceous nature.
Página 250 - After reviewing the different characters by which it has been attempted to distinguish the special subjects of the botanist and zoologist, we find that animals and plants are not two natural divisions, but are specialised members of one and the same group of organised beings. When a certain number of characters concur in the same organism, its title to be regarded as a "plant...