Experimental Air-Borne Infection. Equipment and Methods for the Quantitative Study of Highly Infective Agents; Basic Data on Their Use Obtained with Phenol Red, Serratia marcescens and Bacillus Globigii; and Preliminary Experiments on the Stability and Infectivity for Laboratory Animals of Air-Borne Clouds of Brucella Suis, Malleomyces mallei, Malleomyces pseudomallei, Pasteurella tularensis, and of Viruses of the Psittacosis Group. Microbiological Monographs, The Society of American Bacteriologistsby Theodor Rosebury