This primer is directed to air contamination control personnel, air engineers, whose only contact with bacteriology is usually their responsibility for providing "e;white"e; surroundings in industry and research. Professor Kingsley provides most basic information and describes problems in bacteriology which would help in the understanding, handling, and moving of "e;clean"e; (uncontaminated) air to and from critical areas. Divided into three parts, the manual includes sections on "e;Basic Principles of Bacteriology,"e; "e;Bacteriology in the Air"e; and "e;The Sampling of Airborne Microorganisms."e; A glossary of bacteriological terms and graphs supplements the text.