IMPROVED RESOLUTION IN LIGHT MICROSCOPE RADIOAUTOGRAPHY

Abstract
A method for preparing light microscope radioautograms which permits clear visualization of both silver grains and cell contents is described. Radioautograms were prepared of 0. 5-0. 75-[mu] plastic sections using a thin layer of emulsion. Photographs were made with phase optics and the silver grains were over-focused. Under these conditions, the silver grains appear as bright spots and the section is in sharp focus.

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