The Microscope: and Its Revelations |
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Page xviii
... Adjusting Object - Glass , 54. Arrangement of Microscope for Transparent Objects , 153 165 169 55 . Ditto 56. Spring Scissors , Ditto Opaque Objects , 177 203 57. Curved Scissors , 58. Valentin's Knife , 59. Section - Instrument , 60 ...
... Adjusting Object - Glass , 54. Arrangement of Microscope for Transparent Objects , 153 165 169 55 . Ditto 56. Spring Scissors , Ditto Opaque Objects , 177 203 57. Curved Scissors , 58. Valentin's Knife , 59. Section - Instrument , 60 ...
Page 40
... object , according to the mode in which it is illuminated , and the focal adjustment of the object- glass under which it is examined . - See Chap . VI . to guard against them , the more completely will it 40 INTRODUCTION .
... object , according to the mode in which it is illuminated , and the focal adjustment of the object- glass under which it is examined . - See Chap . VI . to guard against them , the more completely will it 40 INTRODUCTION .
Page 74
... adjustment of the several curvatures , in order that the errors of each separate lens which enters into the combina- tion , may be effectually balanced by the opposite errors of the rest . The first successful attempt was made in this ...
... adjustment of the several curvatures , in order that the errors of each separate lens which enters into the combina- tion , may be effectually balanced by the opposite errors of the rest . The first successful attempt was made in this ...
Page 77
... adjustment in question may be dispensed with ; and even where the angle is much larger , if the corrections be made perfect for a thickness of glass of 1-100th of an inch ( which is about an average of that with which objects of the ...
... adjustment in question may be dispensed with ; and even where the angle is much larger , if the corrections be made perfect for a thickness of glass of 1-100th of an inch ( which is about an average of that with which objects of the ...
Page 86
... adjustment to every variety of focal distance , without movement of the object . It is now a principle almost universally recognized in the construction of good Microscopes , that the stage whereon the object is placed should be a ...
... adjustment to every variety of focal distance , without movement of the object . It is now a principle almost universally recognized in the construction of good Microscopes , that the stage whereon the object is placed should be a ...
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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
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