in the light. . The totally reflecting prism, when used to render the “The front: is furnished with a plate hinged to swing The'sleeve that supports the objective holder and the beam horizontal in a vertical lantern, is arranged as in a vertical plane, and provided with a cell for con- sleeve, f,… … It cannot, of course, be revolved ; but the object and ARRANGEMENT OF ELECTRIC CANDLE the analyzer can be turned, which is sufficient.’ Very Fig. 1—SCIENTIFIC LANTERN. FOR LANTERN USE. good results can be secured by employing a plane mir- Vex, 5inches in diameter and 8 inches focus, arranged…
Internet Archive · Public domain (published before 1931). Free to use for anything.
