Fig. 1-2. — Fig. 1. {Upper.) Photograph of a culture plate showing the dissolution 

 of staphylococcal colonies in the neighborhood of a Penicillium colony. — Fig. 2. 

 A spectrum plate showing the inhibition of a variety of bacteria by penicillin. (Fig. 1 

 and 2 from Fleming's original paper in British Jour. Exp. Path. 10:229, 1929.) 



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