The Microscope: Its History, Construction, and Application: Being a Familiar Introduction to the Use of the Instrument and the Study of Microscopical SciencesRoutledge, 1869 - 762 pages |
Other editions - View all
Common terms and phrases
achromatic acid Algæ angle angular aperture animal animalcules Annelids aperture appearance arrangement attached axis beautiful become body bone-cells calcareous Canada balsam cavity cells centre cilia circular colour composed condenser consists covered crystals delicate deposited diameter Diatoms disc edge eggs examination exhibit eye-piece fibres filaments fluid focus Foraminifera gemmules genus glass hairs Haversian canals horny illumination inch Infusoria insect instrument lacunæ larvæ layer lens lenses lines magnifying power mass matter membrane ment micro microscope microscopist minute motion mounted mounted dry muscular nucleolus nucleus object object-glass oblique observed obtained opaque organs outer peculiar piece placed plants Plate polarised light polype portion prism produced rays refraction resembling round scales screw seen shell side siliceous slide solution species specimens spicula sponge spores stage structure substance surface teeth tentacles thickness thin tion tissue transparent transverse tube vegetable vessels Volvox Vorticella zoospores
Popular passages
Page 110 - ... the circulation of the blood in the web of a frog's foot ; also three good objects to test the different object-glasses, one hollowed and two plain slips, some thin glass.
Page 649 - 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...
Page 490 - Besides these forms imitating vegetation, there are gracefully-modelled vases, some of which are three or four feet in diameter, made up of a network of branches and branchlets and sprigs of flowers. There are also solid coral hemispheres like domes among the vases and shrubbery, occasionally ten or even twenty feet in diameter, whose symmetrical surface is gorgeously decked with polype-stars of purple and emerald green.
Page 445 - 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.
Page 444 - 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.
Page 741 - A critic fly, whose feeble ray scarce spreads An inch around, with blind presumption bold, Should dare to tax the structure of the whole. And lives the man, whose universal eye Has swept at once th...
Page 741 - Till then alone let zealous praise ascend, And hymns of holy wonder, to that POWER, Whose wisdom shines as lovely on our minds, As on our smiling eyes his servant-sun.
Page 281 - ... opening, these are at first very minute ; though they rapidly increase in size. The segments are separated by the elongation of the connecting tube, which is converted into two roundish hyaline lobules. These lobules increase in size, acquire colour, and gradually put on the appearance of the old portions. Of course, as they increase, the original segments are pushed further asunder, and at length are disconnected, each taking with it a new segment to supply the place of that from which it has...
Page 444 - ... ascending stream of animal life. Having converted the dead and decomposing particles into their own living tissues, they themselves become the food of larger Infusoria, and of numerous other small animals, which in their turn are devoured by larger animals...
Page 47 - It consists of two planoconvex 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. Huyghens was not aware of the value of his eye-piece, it was reserved for Boscovich to point out that he had by this important arrangement accidentiilly corrected a great part of the chromatic aberration. Let fig. 107 represent the Huyghenian eye-piece of a microscope, FF being the fieldglass...