The Microscope: and Its Revelations |
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Page 43
... exhibit markings of extraordinary beauty and symmetry , which are among the best " test - objects " that can be employed for the higher powers of the instrument ( Chap . IV ) : moreover , the membrane of each cell being coated ...
... exhibit markings of extraordinary beauty and symmetry , which are among the best " test - objects " that can be employed for the higher powers of the instrument ( Chap . IV ) : moreover , the membrane of each cell being coated ...
Page 54
... exhibit ( as Prof. Quekett has shown ) such distinctive modifications of that plan in the different classes and orders of the Vertebrated series , that it is generally possible by the microscopic examina- tion of the merest fragment of ...
... exhibit ( as Prof. Quekett has shown ) such distinctive modifications of that plan in the different classes and orders of the Vertebrated series , that it is generally possible by the microscopic examina- tion of the merest fragment of ...
Page 64
... exhibits , and to the order and constancy which this presents . Still more is this the case , when we direct our scrutiny to the penetration of that universe which may be said to be included in the body of Man , or of any one of the ...
... exhibits , and to the order and constancy which this presents . Still more is this the case , when we direct our scrutiny to the penetration of that universe which may be said to be included in the body of Man , or of any one of the ...
Page 73
... exhibit broad fringes.2 12. The Chromatic Aberration of a lens , like the Spherical , may be diminished by the contraction of its aperture , so that only its central portion is employed . But the error cannot be got rid of entirely by ...
... exhibit broad fringes.2 12. The Chromatic Aberration of a lens , like the Spherical , may be diminished by the contraction of its aperture , so that only its central portion is employed . But the error cannot be got rid of entirely by ...
Page 85
... exhibition of these , as an eye - piece of the kind just alluded to , with an objective of about 3 or 4 inches focus ; and this may either be a single lens ( which , when of such low power , will perform sufficiently well for objects of ...
... exhibition of these , as an eye - piece of the kind just alluded to , with an objective of about 3 or 4 inches focus ; and this may either be a single lens ( which , when of such low power , will perform sufficiently well for objects of ...
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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
Page 27 - OBSTETRIC MEDICINE AND SURGERY, in reference to the Process of Parturition. A new And enlarged edition, thoroughly revised by the author. With additions by WV KEATING, MD, Professor of Obstetrics, Ac., in the Jefferson Medical College, Philadelphia.
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