Journal of the Royal Microscopical Society, Volume 1Royal Microscopical Society., 1878 |
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Halaman 2
... thickness of of an inch or more , in order that the various measurements might be made with sufficient accuracy to establish general principles , and to verify or correct certain theoretical deductions of Professor Stokes , who ...
... thickness of of an inch or more , in order that the various measurements might be made with sufficient accuracy to establish general principles , and to verify or correct certain theoretical deductions of Professor Stokes , who ...
Halaman 3
... thickness of this medium , and d the amount of the displacement of the focus , the index of refraction μ may easily be calculated from the following equation : με t- t In the instrument described by Dr. Royston - Pigott , the amount of ...
... thickness of this medium , and d the amount of the displacement of the focus , the index of refraction μ may easily be calculated from the following equation : με t- t In the instrument described by Dr. Royston - Pigott , the amount of ...
Halaman 4
... thickness must be measured , and due allowance made for it in calculating out the results . It is also requisite to deduct from the indices given a small quantity due to the effects of t - t d by the formula μ = spherical aberration ...
... thickness must be measured , and due allowance made for it in calculating out the results . It is also requisite to deduct from the indices given a small quantity due to the effects of t - t d by the formula μ = spherical aberration ...
Halaman 5
... thickness of the section , at each of which only one system can be seen at once . The image is thus truly bifocal , and has a definite focal axis , and the lines are dis- tinctly visible only when parallel or perpendicular to this axis ...
... thickness of the section , at each of which only one system can be seen at once . The image is thus truly bifocal , and has a definite focal axis , and the lines are dis- tinctly visible only when parallel or perpendicular to this axis ...
Halaman 9
... thickness of the specimen ; and if the double refraction be weak and the section too thin , the bifocal character of the image may not be recognizable with an object - glass of too low power . Sometimes , however , as in orpiment , the ...
... thickness of the specimen ; and if the double refraction be weak and the section too thin , the bifocal character of the image may not be recognizable with an object - glass of too low power . Sometimes , however , as in orpiment , the ...
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acid action alcohol Amphiuma angle angular aperture aniline animal aperture apparatus appear axis bacteria Bacterium balsam blood body Canada balsam cells centre chromic acid coloured blood-corpuscles Comptes Rendus contraction corpuscles covering glass Crustacea crystal described diameter diatoms disk distinct double contour edge examination experiments eye-piece flagella flagellum fluid fossil Foveaux Strait Frank Crisp genus glycerine granules Heliozoa illumination immersion inch Infusoria insects lens lenses light magnified matter measured membraneous layer method Micro millimetre mineral minute nucleus object object-glass oblique observed obtained optical ordinary organs paper parasite picric acid plate preparation present prism produced Professor protoplasm Radiolaria rays reagent refraction researches rotifers ROYAL MICROSCOPICAL SOCIETY sarcode seen side slide solution species specimens sponge spores staining striæ structure substance surface teeth termo thickness thin tion tissues tube valve whilst woodcut
Bagian yang populer
Halaman 229 - Report on the Hydroida collected during the Exploration of the Gulf Stream by LF de Pourtales, Assistant United States Coast Survey.
Halaman 125 - ... unfetters the mind from prejudices of every kind, and leaves it open and free to every impression of a higher nature which it is susceptible of receiving, guarding only against enthusiasm and self-deception by a habit of strict investigation, but encouraging, rather than suppressing, everything that can offer a prospect or a hope beyond the present obscure and unsatisfactory state.
Halaman 159 - The following list of presents was read, and the thanks of the meeting were voted to the respective donors ; viz., FOR THE LIBRARY.
Halaman 55 - ... established by which the ratio between emergent beam and focal length, could be conveniently denoted. It would not be possible for me to condense, without a sacrifice of intelligibility, the steps by which he subsequently showed, in a very beautiful manner, that the ratio in question can be expressed by the product of the refractive index of the medium in front of the objective, and the sine of half the angle of aperture, that is by...
Halaman 90 - LIGHT: a Series of Simple, entertaining, and Inexpensive Experiments in the Phenomena of Light, for the Use of. Students of every age.
Halaman 160 - The President proposed a vote of thanks to the author of the paper, and also to Mr.
Halaman 33 - President, in the chair. The minutes of the preceding meeting were read, and were signed by the President.
Halaman 123 - In mathematics, chemistry, and every branch of natural philosophy, how many are the inquiries necessary for their improvement and completion, which, taken separately, do not appear to lead to any specifically advantageous purpose ! Ho'w many useful inventions, and how much valuable and improving knowledge, would have been lost, if a rational curiosity, and a mere love of information, had not generally been allowed to be a sufficient motive for the search after truth !" — Malthus's Principles of...
Halaman 30 - Hales in the chair. The Minutes of the preceding meeting were read and confirmed...
Halaman 93 - Society during the past month was read by the Secretary, and the thanks of the meeting were voted to the donors.