ensive of optical toys. It can be purchased in the an image of the experimenter something like that ordinary form for five or ten cents. It is sometimes shown in the engraving. elaborately mounted on a stand and provided with specially prepared objects. It consists of a tube con- taining two long… … are the reverse of those just described ; and while, in this case, as in the other, the virtual image appears be- 1, PARTS OF KALEIDOSCOPE. 2, THE FIGURE. 3, KALEIDOSCOPE. hind the mirror, the image is a magnified one. The real image, 'which appears in front of the concave mir- with bits of broken…
Patents · Patented · Color · Shaft · Formed · Scientific American · Yellow glass · Supreme Court · Address munn · Express money · Natural gas · Drill shaft · Side scenes · American supplement · Spring wheel
Internet Archive · Public domain (published before 1931). Free to use for anything.
