Journal of the Royal Microscopical Society, Volume 1Royal Microscopical Society., 1878 |
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Halaman iii
... able to establish for the future , and which has been partially brought into operation in the later numbers of the Journal . The Journal will be published bi - monthly , in February , April , June , August , October , and December ; and ...
... able to establish for the future , and which has been partially brought into operation in the later numbers of the Journal . The Journal will be published bi - monthly , in February , April , June , August , October , and December ; and ...
Halaman 1
... able to treat them in a more or less original manner . I proposed to lay before you an account of some further observations of my own in connection with the visibility of very minute objects , and to discuss what has been done and said ...
... able to treat them in a more or less original manner . I proposed to lay before you an account of some further observations of my own in connection with the visibility of very minute objects , and to discuss what has been done and said ...
Halaman 3
... able to read to Tooo of an inch , and to estimate half that quantity . The thickness of the specimen is easily measured by focussing first the particles of dust on the surface of the glass plate supporting the mineral , and then those ...
... able to read to Tooo of an inch , and to estimate half that quantity . The thickness of the specimen is easily measured by focussing first the particles of dust on the surface of the glass plate supporting the mineral , and then those ...
Halaman 4
... able to obtain an image of a circular hole of any requisite diameter . I had two sets of lines ruled on the same surface at right angles to each other , in order that there might be less chance of mistaking any striæ in the mineral for ...
... able to obtain an image of a circular hole of any requisite diameter . I had two sets of lines ruled on the same surface at right angles to each other , in order that there might be less chance of mistaking any striæ in the mineral for ...
Halaman 5
... able to examine separately the two rays polarized in opposite planes , a Nicol's prism must be used over the eye - piece , arranged at such an azimuth as to transmit one or other ray alone . The ordinary ray has just the same properties ...
... able to examine separately the two rays polarized in opposite planes , a Nicol's prism must be used over the eye - piece , arranged at such an azimuth as to transmit one or other ray alone . The ordinary ray has just the same properties ...
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Edisi yang lain - Lihat semua
Istilah dan frasa umum
action Amphibia Amphiuma tridactylum angle angular aperture aniline animal aperture apparatus appear axis bacteria Bacterium balsam blood blood-corpuscle of Amphiuma body Canada balsam cells centre chromic acid coloured blood-corpuscles colourless contraction corpuscles covering glass crystals delicate described diameter diatoms disk distinct Ditto double contour edge examination eye-piece flagella flagellum fluid focal focus Foveaux Strait Frank Crisp Frog genus give granules hairs illumination inch indices insects Journal lens lenses light lines liquid matter measured membraneous layer method micro millimetre mineral minute nucleus object-glass oblique observed obtained optical ordinary organs paper picric acid plate present President prism produced Professor protoplasm Radiolaria rays reagent refraction represented rotifers ROYAL MICROSCOPICAL SOCIETY seen slide solution species specimens sponge staining striæ structure Stylaster substance surface termo thickness thin tint tion tissues tube woodcut
Bagian yang populer
Halaman 30 - President, in the chair. The minutes of the preceding meeting were read and confirmed, a list of donations was read, and the thanks of the meeting were voted to the donors.
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 123 - ... 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 155 - 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 - numerical aperture " is equal to the product of the refractive index of the medium in front of the objective, multiplied into the sine of the semi-angular aperture=n sin. w. This definition of "numerical aperture" offers at once a means by which all objectives, whether dry, water, or oil .immersion, can be directly compared. It is based on the theory whence Professors Abbe and Helmholtz deduced the limit of visibility. The...
Halaman 156 - The President proposed a vote of thanks to the author of the paper, and also to Mr.
Halaman 40 - On some remarkable forms of animal life from the great deeps off the Norwegian coast.
Halaman 121 - 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 37 - Society should publish its own ' Transactions,' and the Council fully hoped that they might be able not only to do this, but also to give a good deal of other valuable matter relating to microscopical science. The President then delivered his Annual Address to the Society. Mr. Charles Brooke begged to propose a vote of thanks to the President for the very able Address which they had heard read. It was quite clear that in opening up an entirely new branch of microscopical research, it could only be...
Halaman 93 - President, in the Chair. The minutes of the preceding meeting were read and confirmed. The following gentlemen were duly elected Fellows of the.