784 A MANUAL OF THE PENICILLIA 



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■ AND Fennell, D. I. 1948. New species of Penicillium. Mycologia 40: 



507-546, 11 figs. 



Ratcliff, J. D. 1945. Yellow Magic - The Story of Penicillin, pp. 1-173, illust. 

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1934. Some observations on the ability of a mold, or its metabolic products, 



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1935. Some properties of bacterial inhibitory substance produced by a mold. 



Jour. Bact. 29: 215-221. 



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