The Microscope: and Its Revelations |
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Page 44
... usually accomplished by the agency of visible cilia : and the determination of the conditions under which it occurs , and of the purposes it is intended to fulfil , is only likely to be accomplished after a far more extensive as well as ...
... usually accomplished by the agency of visible cilia : and the determination of the conditions under which it occurs , and of the purposes it is intended to fulfil , is only likely to be accomplished after a far more extensive as well as ...
Page 52
... usually detaching themselves from the stock that bore them , swim freely through the ocean as minute jelly - fish , without exhibiting the slightest trace of their originally attached condition . The Medusa in due time produce fertile ...
... usually detaching themselves from the stock that bore them , swim freely through the ocean as minute jelly - fish , without exhibiting the slightest trace of their originally attached condition . The Medusa in due time produce fertile ...
Page 57
... usually ( but not by any means constantly ) in the order of importance which Systematists have assigned to them . And it is in thus pursuing , by the aid which the Microscope alone can afford to his visual power , the history of the ...
... usually ( but not by any means constantly ) in the order of importance which Systematists have assigned to them . And it is in thus pursuing , by the aid which the Microscope alone can afford to his visual power , the history of the ...
Page 77
... usually covered ) , they will not be much deranged by a dif- ference of a few hundredths of an inch , more or less , in that amount . 16. We are now prepared to enter upon the application of the optical principles which have been ...
... usually covered ) , they will not be much deranged by a dif- ference of a few hundredths of an inch , more or less , in that amount . 16. We are now prepared to enter upon the application of the optical principles which have been ...
Page 78
... usually adapted to re- ceive , and to bring to a focus , rays which are parallel or but slightly divergent . This limit is variously stated at from five to ten inches ; we are inclined to think from our own observations , that the ...
... usually adapted to re- ceive , and to bring to a focus , rays which are parallel or but slightly divergent . This limit is variously stated at from five to ten inches ; we are inclined to think from our own observations , that the ...
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Common terms and phrases
acetic acid achromatic acid adjustment afford angle angular aperture animal Animalcules antheridia aperture appearance archegonia arrangement attached body calcareous Canada balsam cavity cells centre cilia color condenser consists containing convex convex lens corpuscles Crustacea cuticle diameter disk distance distinct Ditto Ehrenberg employed endochrome epithelium examination extra cloth extremely eye-piece fibres filaments fluid focus Foraminifera frustules furnished illumination inch Insects instrument Journal kind lacunæ larvæ layer lens lenses light magnifying power matter Medical membrane ment Microscopist milled head minute mode mounted movement nearly object-glass oblique observed octavo octavo volume ordinary organs particles peculiar plants plate portion present prism Prof rays refraction rendered resembling Rotifera scale seen segments separated shell side slide sometimes species specimens spicules stage stem stomata structure substance surface thickness thin glass tion tissue transparent transverse tube usually utricle Vegetable vessels Volvox whilst Zoophytes zoospores
Popular passages
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