Below the prism is an achromatic eyepiece, having an adjustable slit between the two lenses; the upper lens being furnished with a screw motion to focus the slit. A side slit capable of adjustment admits when required a second beam of light from any object... A Text-book of physiology - Page 88by Isaac Ott - 1904 - 563 pagesFull view - About this book
| Jabez Hogg - 1867 - 1456 pages
...construction of this new and elegant micro-spectroscope. fig. 75.— Tlu Sorhn-Bnvming Uicro-ipectroKOpt. The prism is contained in a small tube, which can...field with that obtained from the object on the stage. A is a brass tube, carrying the compound direct vision prism. F, a milled head, with screw motion to... | |
| 1867 - 682 pages
...arrangement at the upper part on the right side is for the purpose of obtaining a supplementary spectrum from any object whose spectrum it is desired to compare...object placed on the stage of the microscope. This object may be either a solution of permanganate of potash in a small sealed tube, a cobalt blue glass,... | |
| 1867 - 652 pages
...by direct vision, and there is an arrangement for the purpose of obtaining a supplementary spectrum from any object whose spectrum it is desired to compare...of the object placed on the stage of the microscope ; which object may be either a solution of permanganate of potash in a small sealed tube, a cobalt-blue... | |
| James Samuelson, William Crookes - 1867 - 672 pages
...by direct vision, and there is an arrangement for the purpose of obtaining a supplementary spectrum from any object whose spectrum it is desired to compare...of the object placed on the stage of the microscope ; which object may be either a solution of permanganate of potash in a small sealed tube, a cobalt-blue... | |
| Henry Enfield Roscoe - 1870 - 514 pages
...small tube («), FIG. 55. which can be removed at pleasure, and which is shown in section in Fig. 51. Below the prism is an achromatic eyepiece, having...field with that obtained from the object on the stage. a is a brass tube carrying the compound direct-vision prism. 6, a milled head, with screw motion to... | |
| Jabez Hogg - 1869 - 814 pages
...Micro-tjactmeopi. The prism is contained in a small tube, which can be removed at pleasure. Below the prism ia an achromatic eye-piece, having an adjustable slit...field with that obtained from the object on the stage. A is a brass tube, carrying the compound direct vision prism, n, a milled head, with screw motion to... | |
| Henry E. Roscoe - 1869 - 372 pages
...achromatic eyepiece having an adjustable slit between the two lenses ; the upper lens being f FIG. 47. furnished with a screw motion to focus the slit. A...field with that obtained from the object on the stage. a is a brass tube carrying the compound direct-vision prism. &, a milled head, with screw motion to... | |
| sir Henry Enfield Roscoe - 1869 - 396 pages
...achromatic eyepiece having an adjustable slit between the two lenses ; the upper lens being Fio. 47. furnished with a screw motion to focus the slit. A...field with that obtained from the object on the stage. a is a brass tube carrying the compound direct-vision prism. N b, a milled head, with screw motion... | |
| John Henry Pepper - 1869 - 722 pages
...conveniently examined, and accurately investigated, by means of Sorby and Browning's new Microspectroscope." slit, capable of adjustment, admits, when required,...field with that obtained from the object on the stage A is a brass tube carrying the compound direct-vision prism. B is a milled head, with screw motion... | |
| sir Henry Enfield Roscoe - 1870 - 452 pages
...small tube (a), FIG. 55. which can be removed at pleasure, and which is shown in section in Fig. 51. Below the prism is an achromatic eyepiece, having...field with that obtained from the object on the stage. a is a brass tube carrying the compound direct-vision prism. b, a milled head, with screw motion to... | |
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