PLATE III. Vol. I
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A. Film made from a vaginal discharge stained with Loffler's methylene blue. Note the diplococci (Gonococci) filling several pus cells and others lying free. One squamous cell is seen. B. The same discharge stained by Gram's method and counterstained with weak carbol-fuschsin. The gonococci are coloured red, thus proving their Gram-negative property. I)
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C. Film made from a mixed culture of gonococci and pseudo-diphtheria bacilli. The gonococci are stained red and are seen to be variable in size. The bacilli have retained the black stain by Gram's method, and are mostly in the form of short thick rods. D. Film of a mixed culture designed .to show the resemblance of micrococcus catarrhalis to gonococci 5 they are small paired cocci stained red after losing the black stain in Gram's method. The streptococci in long chains are Gram-positive. To FACE PAGE Io8