| Mrs. Marcet (Jane Haldimand) - 1821 - 366 pages
...opening, and place the lens XY (fig. 2.) in it, to converge the rays to a focus on the object A B. There is but one thing more wanting to complete the...2.) is a small mirror placed on the outside of the window shutter, which receives the incident rays SS, and reflects them on the lens X Y. Now that we... | |
| Mrs. Marcet (Jane Haldimand) - 1821 - 350 pages
...opening, and place the lens XY (fig. 2.) in it, to converge the Taj[S to a focus on the object A B. There is but one thing more wanting to complete the...illuminating the object more perfectly ? Mrs. B. You are iquite right. PQ (fig. 2.) is a small mirror, placed on the outside of the window-shutter, which receives... | |
| Mrs. Marcet (Jane Haldimand) - 1824 - 370 pages
...opening, and place the lens XY (fig. 2.) in it, to converge the rays to a focus on the object A B. There is but one thing more wanting to complete the...receives the incident rays SS, and reflects them on the lent X Y. Now that we have completed the apparatus let us examine the mites on this piece of cheese,... | |
| Mrs. Marcet (Jane Haldimand), John Lauris Blake - 1826 - 308 pages
...the openiug and place the lens XY (fig. 2.) in it, to converge tie rays to a focus on the object A B. There is but one thing more wanting to complete the...a means of illuminating the object more perfectly ? Sirs. B. You are quite right. PQ, (fig. 2.) is a small mirror placed on the outside of the window-shutter,... | |
| Mrs. Marcet (Jane Haldimand), Thomas P. Jones - 1826 - 286 pages
...lens XY (fig. 2.) in it, to converge the rays to a focus on the object A B. There is but one thine more wanting to complete the solar microscope, which...illuminating the object more perfectly? Mrs. B. You are cpite right. PQ (fig. 2.) is a small mirror, placed on the outside of the window-shutter, which receives... | |
| Mrs. Marcet (Jane Haldimand), John Lauris Blake - 1836 - 540 pages
...opening, and place the lens XY (fig. 2.) in it, to converge the rays to a focus on the object A B. There is but one thing more wanting to complete the...the incident rays SS, and reflects them on the lens X Y. Now that we have completed the apparatus, let us examine the mites on this piece of cheese, which... | |
| Richard Green Parker - 1839 - 262 pages
...diminishes in size, and total blindness in the inevitable result. mirror attached to it, upon a movable joint, which can be so adjusted as to receive the sun's rays and reflect them upon the object. It consists of a tube, a mirror or looking glass, and two convex lenses. The sun's rays are reflected... | |
| Richard Green Parker - 1855 - 416 pages
...retina It R. 125. The solar microscope is a microscope with a mirror attached to it, upon a movable joint, which can be so adjusted as to receive the sun's rays and reflect them upon the object. It consists of a tube, a mirror or looking,glass, and two convex lenses. The sun's rays are reflected... | |
| Richard Green Parker - 1856 - 502 pages
...is a microscope What nthe . ' * solar micro- with a mirror attached to it, upon a movable te°Pe • joint, which can be so adjusted as to receive the sun's rays and reflect them upon the object. It consists of a tube, a mirror or looking-glass, and two convex lenses. The sun's rays are reflected... | |
| Richard Green Parker - 1861 - 488 pages
...solar microscope is a microscope tolar micro- with a mirror attached to it, upon a movable tcope ? joint, which can be so adjusted as to receive the sun's rays and reflect them upon the object. It consists of a tube, a mirror 'or looking-glass, and two convex lenses. The sun's rays are reflected... | |
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