 | Mrs. Marcet (Jane Haldimand) - 1821 - 350 pages
...retina ? J!fr$. B. The microscope is constructed for this purpose. The single microscope (fig. 5.) consists simply of a convex lens, commonly called...approach your eye very near the object, for the lens A B, by diminishing the divergence of the rays, before they enter the pupil C, makes them fall parallel... | |
 | Mrs. Marcet (Jane Haldimand) - 1821 - 366 pages
...B. The microscope is constructed for this purpose. The sing4e microscope (fig. 5.) consists »imply of a convex lens, commonly called a magnifying glass;...the object is placed, and through which it is viewed : hy this means, you are enabled to approach ynui eve very near the object, for the lens AB, by diminishing... | |
 | Mrs. Marcet (Jane Haldimand) - 1824 - 370 pages
...the retina? Mrs. B. The microscope is constructed for this purpose. The single microscope (fig. 5.) consists simply of a convex lens, commonly called...near the object, for the lens AB, by diminishing the d; — gence of the rays, before they enter the pupil C, makes them fall parallel on the crystalline... | |
 | Mrs. Marcet (Jane Haldimand), John Lauris Blake - 1826 - 308 pages
...The single microscope (fig. 5.) consists simply of a convex lens, commonly called a magnifying-glass; in the focus of which the object is placed, and through...near the object, for the lens, AB, by diminishing the divergence of the rays, before they enter the pupil C, makes them fall parallel on the crystalline... | |
 | Mrs. Marcet (Jane Haldimand), Thomas P. Jones - 1826 - 286 pages
...the retina? Mrs. B. The microscope is constructed for this purpose. The single microscope (fig. 5.) consists simply of a convex lens, commonly called...which it is viewed: by this means, you are enabled to place your eye very near to the object, for the lens AB, by diminishing the divergence of the rays,... | |
 | 1832 - 650 pages
...which the object is placed, and through which it is viewed. By this means, you are enabled to faring your eye very near the object, for the lens AB, by...rays before they enter the pupil C, makes them fall paraUel on the crystalline humour D, by which they are refracted to a focus MI the retina, at R R.... | |
 | 1832 - 640 pages
...is constructed on this principle. The single microscope (fiç. 39) consists simply of a convex lens, in the focus of which the object is placed, and through...which it is viewed. By this means, you are enabled to bring your eye very near the object, for the lens AB, by diminishing the divergency of the rays before... | |
 | 1832 - 642 pages
...is constructed on this principle. The single microscope (ßg. 39) consists simply of a convex lens, in the focus of which the object is placed, and through which it is viewed. By thi* means, you are enabled to bring your eye very near the object, for the lens AB, by diminishing... | |
 | Mrs. Marcet (Jane Haldimand) - 1837 - 358 pages
...single microscope (fig. 5.) consists simply of * convex lens, commonly called a magnifying-glass ; in the focus of which the object is placed, and through...viewed : by this means you are enabled to approach yonr eye very near the object, for the lens, AB, by diminishing the divergence of the rays, before... | |
 | Light - 1838 - 298 pages
...compounds the varnish." The microscope is also a very remarkable instrument. The single microscope consists simply of a convex lens, commonly called...placed, and through which it is viewed : by this means we are able to bring the eye very near the object, and thus the latter is magnified by the lens. The... | |
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The single microscope (fig. 5.) consists simply of a convex lens, commonly called a magnifying glass; in the focus of which the object is placed, and through which it is viewed: by this means, you are enabled to... 
