The MicroscopeH. Ingram and Company, 1856 - 457 Seiten |
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Acarus achromatic acid algæ angle animal animalcules aperture appear arranged attached axis beautiful become body bone bone-cells branches Bryozoa calcareous Canada balsam cells centre cilia colour composed consists corpuscles covered creature crystals curious delicate deposited diameters edge eggs enclosed epithelium examined exhibit extremity eye-piece fibre filaments fluid Flustra focus gemmules glass granules hairs Haversian canals horny illumination inch Infusoria insects larva larvæ layer length lens lenses lines mass matter membrane microscope microscopist minute Morpho Menelaus motion mounted mouth nucleolus nucleus object object-glass observed organs parasitic pencil piece placed plants Plate polarised light polyps portion prism proboscis produced pupa raphides rays refraction resembling round scales seen shell side siliceous skin slide species specimens spicula spines spiral sponges stage starch structure substance surface tentacles thickness thin tion tissue tourmaline transparent transverse tube vegetable vessels Vorticella whilst Zoophytes
Beliebte Passagen
Seite 458 - Webster's Dictionary of the English Language, Exhibiting the Origin, Orthography, Pronunciation, and Definitions of Words. Abridged from the Quarto Edition of the Author. To which are added a Synopsis of Words differently Pronounced by different Orthoepists ; and Walker's Key to the Classical Pronunciation of Greek, Latin, and Scripture Proper Names.
Seite 338 - 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...
Seite 180 - ... around. The beauty and novelty of such a scene in the animal kingdom long arrested my attention, but, after twenty-five minutes' of constant observation, I was obliged to withdraw my eye from fatigue, without having seen the torrent for one instant change its direction, or diminish in the slightest degree the rapidity of its course.
Seite 451 - Has swept at once th' unbounded scheme of things, Marked their dependence so, and firm accord, As with unfaltering accent to conclude That this availeth nought ? Has any seen The mighty chain of beings, lessening down From Infinite Perfection to the brink Of dreary nothing, desolate abyss!
Seite 141 - While sailing a little south of the Plata on one very dark night, the sea presented a wonderful and most beautiful spectacle. There was a fresh breeze, and every part of the surface, which during the day is seen as foam, now glowed with a pale light. The vessel drove before her bows two billows of liquid phosphorus, and in her wake she was followed by a milky train. As far as the eye reached, the crest of every wave was bright, and the sky above the horizon, from the reflected glare of these livid...
Seite 176 - 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.
Seite 218 - ... had become thin and flattened like a pancake. All communication between the inferior portion of the stomach and the mouth was of course prevented ; yet, instead of emaciating and dying of an atrophy, the animal had availed itself of what...
Seite 14 - These foci vary according to the distance of the radiant points. lu every lens the right line perpendicular to the two surfaces is called the axis of the lens, and is seen in the annexed figure ; the point where the axis cuts the surface is called the vertex of the lens.
Seite 235 - ... 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...