 | 1856 - 494 pages
...being brilliantly illuminated in a jet-black field, with an objective of 170° of aperture or more. The principle of operation consists, in causing rays...mounted, at the proper angle for causing total internal refaction from the upper surface of the thin cover, which is thus made to act the part of a speculum,... | |
 | Jabez Hogg - 1858 - 644 pages
...the Method of Illuminating Opaque Objects under the Highest Powers of the Microscope," by Mr. Wenham. The principle of operation consists in causing rays...light to pass through the under side of the glass sllp upon which the object is mounted, at the proper angle for causing total-internal reflection from... | |
 | Jabez Hogg - 1861 - 650 pages
...the Method of Illuminating Opaque Objects under the Highest Powers of the Microscope," by Mr. Wenham. The principle of operation consists in causing rays...object is mounted, at the proper angle for causing total-internal reflection from the upper surface of the thin cover, which is thus made to at-t the... | |
 | Jabez Hogg - 1861 - 644 pages
...the Method of Illuminating Opaque Objects under the Highest Powers of the Microscope," by Mr. Wenham. The principle of operation consists in causing rays...of the glass slip upon which the object is mounted, a' the proper angle for causing total-internal reflection from the upper surface of the thin cover,... | |
 | Jabez Hogg - 1861 - 652 pages
...the Method of Illuminating Opaque Objects under the Highest Powers of the Microscopes" by Mr. Wenham. The principle of operation consists in causing rays...under side of the glass slip upon which the object is mounteds at the proper angle for causing total-internal reflection from the upper surface of the thin... | |
 | Royal Microscopical Society (Great Britain) - 1869 - 390 pages
...Powers of the Microscope," on the principle of " causing rays of light to pass through the under-side of the glass slip upon which the object is mounted, at the proper angle for causing total internal reflexion from the upper surface of the cover, which is thus made to act the part of a speculum for... | |
 | Royal Microscopical Society (Great Britain) - 1869 - 468 pages
...Powers of the Microscope," on the principle of " causing rays of light to pass through the under-side of the glass slip upon which the object is mounted, at the proper angle for causing total ititernal reflexion from tJie upper surface of the cover, which is thus made to act the part of a speculum... | |
 | 1856 - 506 pages
...objective of 170° of aperture or more. The principle of operation consists, in causing rays of light in pass through the under side of the glass slip upon...for causing total internal reflection from the upper surf ace of the thin cover, which is thus made to act the part of a speculum, for throwing the light... | |
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Microscope," by Mr. Wenham. The principle of operation consists in causing rays of light to pass through the under side of the glass slip upon which the object is mounted, at the proper angle for causing total-internal reflection from the upper surface... 