A RAPID METHOD TO TAKE A PHOTOGRAPH OF PHAGE-PLAQUES BY MEANS OF AN ENLARGER

Abstract

A rapid method to take a photograph of phage-plaques formed on an agar plate by using an enlarger was described. A piece of the “layer agar” on which plaques had been developed was stripped from the “basal agar”, and fixed on a piece of glass. This was enlarged and printed directly on a photographic paper by an enlarger. Conditions required for obtaining clear, beautiful photograph were discusesd.