THE STUDY OF MICROORGANISMS IN THE SOIL 139 



Stoklasa, J. and E. G. Doerell: "Handbuch der biophysikalischen und 

 biochemischen Durchforschung des Bodens," 812 pp., Berlin, 1926. 



D. Manuals of Bacteriologic Technic: 



Abel, R.: ''Bakteriologisches Taschenbuch," 1927. 



American Public Health Association: "Standard Methods for the Exam- 

 ination of Water and Sewage," 6th Ed., New York, 1925. 



Conn, H. J.: *'An Elementary Laboratory Guide in General Bacteri- 

 ology," 98 pp., 27 figs., Baltimore, 1927. 



Cunningham, A.: "Practical Bacteriology," 188 pp., London, 1924. 



Giltner, Ward: "Laboratory Manual in General Microbiology," 3d Ed., 

 472 pp.. New York, 1926. 



Hastings, E. G. and W. H. Wright: "A Laboratory Manual of General 

 Agricultural Bacteriology," 83 pp., 28 figs., Madison, 1927. 



Levine, M. : "Laboratory Technique in Bacteriology," 149 pp., New York, 

 1927. 



Norton, J. F. and I. S. Falk: "Laboratory Outlines in Bacteriology and 

 Immunology," 114 pp., Chicago, 1926. 



Koch, A.: " Mikrobiologisches Praktikum," 109 pp., 4 figs., Berlin, 1922. 



KusTER, E.: "Kultur der Mikroorganismen," 3d Ed., Leipzig, 1921. 



Lohnis, F.: "Landwirtschaftlich-bakteriologisches Praktikum," 3d Ed., 

 BerHn, 1926. 



MuiR, R. and J. Ritchie: "Manual of Bacteriology," 7th Ed.; 753 pp., 

 London, 1921. 



E. Classification of Bacteria: 



Bergey, D. H.: "Manual of Determinative Bacteriology," 2nd Ed., 

 Baltimore, 442 pp., 1925. 



Buchanan, R. E.: "General Systematic Bacteriology," 597 pp., Balti- 

 more, 1925. 



Lehmann, K. B. and R. O. Neumann: " Bakteriologie,. insbesondere 

 bakteriologische Diagnostik.," I Band, "Technik, Allgemeine Diagnos- 

 tik, Atlas," 172 pp., 65 plates. Mfmchen, 1926; II Band: "Allgemeine 

 und spezielle Bakteriologie," 876 pp., 43 figs., Miinchen, 1927. 



LIST OF LABORATORIES 

 WHERE CULTURES MAY BE SECURED 



1. American Type Culture Collection, 

 George H. Weaver, Curator, 



637 South Wood Street, 

 Chicago, Illinois. 



2. The Lister Institute of Preventive Medicine, 

 National Collection of Type Cultures, 

 Chelsea Gardens, London, S. W., England. 



3. Professor Dr. E. Pribram's mikrobiologische Sammlung, 

 vorm. Krai's bakteriolog. Museum, 



Wien, IX/2. Michelbeuerngasse la, 

 (Wien) Vienna, Austria. 



