APPENDIX 181 



Lohnis, F. 1921. Studies upon the Life Cycles of Bacteria. Me- 

 moirs, Nat. Acad. Sci., vol. 16, 2nd Memoir, pp. 252. 



Manteufel. 1906. Untersuchungen iiber die "Autotoxine" (Conradi) 

 und ihre Bedeutung als Ursache der Wachstumshemmung in Bak- 

 terienkulturen. Berl. Klin. Woch., p. 313. 



McKendrick, A. G., and Pai, M. K. 1911. The Rate of Multiplica- 

 tion of Microorganisms; a Mathematical Study. Proc. Roy. 

 Soc. Edinburgh, vol. 31, 649. 



M'Leod, J. W., and Govenlock, P. 1921. Production of Bactericidin 

 by Microorganisms. Lancet, vol. 1, p. 900. 



M'Leod, J. W., and Gordon, J. 1922. a. On the Production of 

 Peroxides by Pneumococci and other Bacteria. Jour. Path, and 

 Bact., vol. 25, p. 139. 



1922. b. The Production of Peroxide of Hydrogen by Bacteria. 

 Biochem. Jour., vol. 16, p. 499. 



Mellon, R. R. 1917. A study of the Diphtheroid Group of Or- 

 ganisms, with Special Reference to their Relation to the Strepto- 

 cocci. Jour. Bact., vol. 2, p. 81, p. 269, p. 447. 



1919. A Contribution to the Bacteriology of a Fusospirillary 

 Organism with Special Reference to its Life History. Jour. Bact., 

 vol. 2, p. 505. 



1920. The Life Cycle Changes of the so-called B. Hodgkini, and 

 their Relation to Mutation Changes in this Species. Jour. Med. 

 Res., vol. 42, p. 61. 



1925. Studies in Microbic Heredity. I. Observations on a Primi- 

 tive Form of Sexuality (Zygospore Formation) in the Colon- 

 typhoid Group. Jour. Bact., vol. 10, p. 481. 



1925. II. The Sexual Cycle of B. coli in Relation to the Origin 

 of Variants with Special Reference to Neisser and Massini's B. 

 coH mutabile. Jour. Bact., vol. 10, p. 579. 



1926. HI. The Hereditary Origin of Group and Specific Ag- 

 glutinogens among the Colon-alkaligenes Organisms. Jour. Im- 

 munol, vol. 11, p. 139. 



1926. V. The Biogenetic Law of Haeckel and the Origin of 

 Heterogeneity within Pure Lines of Bacteria. Jour. Bact., vol. 11, 

 p. 203. 



