Micro-organisms of Maple Sap 001 



L5. . Bacillus pyocyaneus and its pigments Jour. \'.\ 



per. Med. IV. 5-G, pp. C27-G47 I L899). 



16. Laurent, Emile. Recherches experimentales sur les malades des 



plants. Ann. de l'lnst. Pasteur, XIII, pp. 1-4S (1899). Not 

 seen. 



17. Lepoutre, L. Recherches sur la transformation experimental*' de 



bacteries banales en races parasites des plants. Ann. de 

 l'lnst. Pasteur, XVI, p. 304 (1902)). Not seen. Reviewed, 

 Centralb. f. Bakt. X Bd. 2 AM., pp. 189-190 (1903). 



is. Luxwolda, W. B. "Wachstum unci Wirkung einiger Milchbakterien 

 bei verschiedenen Temperaturen. Centralb. f. Bakt. XXXI Bd. 

 2 Abt, pp. 129-175 (1911). B. fluorescens liquefaciens firsl 

 coagulates milk with a lab ferment and then peptonizes it. 

 The author gives the numbers of bacteria present and the de- 

 grees of acid in milk cultures after various incubation periods 

 at different temperatures. He says that B. fluorescens lique- 

 faciens develops remarkably fast at low temperatures, 3°-5° C. 



19. Maassen, A. Die Zersetzung der Nitrate und der Nitrite durch Bak- 



terien. Centralb. f. Bakt. VIII Bd. 2 AM., pp. 152-154 (1902). 



20. Marchal, Emile. The production of ammonia in the soil by mi- 



crobes. Centralb. f. Bakt. I Bd. 2 Abt., pp. 753-758 (1895). 



21. Migula, W. System der Bakterien (1900). 



22. Muir, R. and Ritchie, J. Manual of Bacteriology (1905). 



2.'.. Niederkorn, E. Vergleichende Untersuchung uber die verschie- 

 denen Varietaten des Bacillus 'pyocyaneus und des Bacillus 

 fluorescens liquefaciens. Centralb. f. Bakt. XXVII Bd. 1 Abt., 

 pp. 749-750 (1900). 



24. Ruzicka, S. Experimentelle Studien uber die Variabilitat wich- 



tiger Charaktere des B. pyocyaneus and des B. fluoresci ns 

 liquefaciens. Centralb. f. Bakt. XXIV Bd., pp. 11-17 (1898). 



25. Schmelck, L. Steigerung des Bakteriengehalts im Wasser wahrend 



des Schneeschmelzens. Central!), f. Bakt. IV Bd., pp. 195-199 

 (1888). 



26. . EJine Gletcherbakterie. Centralb. f. Bakt. IV Bd., 



pp. 545-547 (1888). 



27. Smith, E. F. Bacteria in relation to plant diseases, I. (1905). 



28. . II, (1911). 



