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" A, which can be removed at pleasure. Below the prism is an achromatic eye-piece, 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... "
Spectrum analysis, 6 lects - Page 197
by sir Henry Enfield Roscoe - 1870
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The Microscope: Its History, Construction, and Application, Being a Familiar ...

Jabez Hogg - 1898 - 780 pages
...body-tube of the microscope, the prism of which is contained in a small tube, removable at pleasure. Below the prism is an achromatic eye-piece, having...the object placed on the stage of the microscope. ig. 195. —The Sorby-Browning Jlicro-spectroscopic Eye-piece. TITB MICROSCOPE. This second beam of...
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A Text-book of physiology

Isaac Ott - 1904 - 563 pages
...consisting of several parts. The prism is contained in a small tube, which can be removed at pleasure. Below the prism is an achromatic eyepiece, having...field with that obtained from the object on the stage. Fig. 23. — Sorby-Browning Microspectroscope. A is a brass tube carrying the compound direct-vision...
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The Microscope, Its History, Construction, and Application, Being a Familiar ...

Jabez Hogg - 1911 - 780 pages
...prism is an achromatic eye-piece, having an adjustable slit between the two lenses, the upper Ions being furnished with a screw motion to focus the slit....the object placed on the stage of the microscope. Fig. 195.— The Sorhy-TSrowninf; Micro-spectroscopic Eye-piece. This second beam of light strikes...
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