 | John Browning (F.R.A.S.) - 1882 - 108 pages
...spectrum it is desired to compare with that of the object placed on the stage of the Microscope. 46 This second beam of light strikes against a very small...field with that obtained from the object on the stage (Fig. 24, page 52). A (Fig. 23) is a brass tube carrying the compound direct-vision prism, and has... | |
 | Robert Routledge - 1893 - 732 pages
...any object whose spectrum it is desired to compare with that of the object placed on the stage of the microscope. This second beam of light strikes against...spectrum in the same field with that obtained from :he object on the stage. A is a brass tube carrying the compound directvision prism, and has a sliding... | |
 | Robert Routledge - 1896 - 780 pages
...any object whose spectrum it is desired to compare with that of the object placed on the stage of tho microscope. This second beam of light strikes against...the stage. A is a brass tube carrying the compound directvision prism, and has a sliding arrangement for roughly focussing. fJLLH Fir; 224. — The Sorby-... | |
 | Isaac Ott - 1904 - 582 pages
...any object whose spectrum it is desired to compare with that of the object placed on the stage of the microscope. This second beam of light strikes against...field with that obtained from the object on the stage. Fig. 23. — Sorby-Browning Mierospectroscope. A is a brass tube carrying the compound direct-vision... | |
 | Isaac Ott - 1907 - 852 pages
...any object whose spectrum it is desired to compare with that of the object placed on the stage of the microscope. This second beam of light strikes against...the stage. A is a brass tube carrying the compound direct-vision prism, and has a sliding arrangement for roughly focusing. B, a milled head, with screw... | |
| |
... screw motion to focus the slit. A side slit capable of adjustment admits when required a second beam of light from any object whose spectrum it is desired to compare with that of the object placed on the stage of the microscope. This second beam of... 
