132 MOLECULES, VIRUSES, AND BACTERL\ 



Powell, J. F., 1953. "Isolation of Dipicolinic Acid (Pyridine, 2: 6, Dicarboxylic 



Acid) From Spores of Bacillus vicgathcrium," Biochem. J. 54, 210. 

 Powell, J. F., 1956. "Chemical Changes Occurring During Spore Germination," 



Spores (Proceedings of the Allerton Spore Conference), Publication No. 5, 



A.I.B.S., Washington, D. C. 

 Powell, J. F., and Strange, R. E., 1954. "Hexosamine-containing Peptides in 



Spores of Bacillus suhtilis, B. megatherium, and B. cereus," Biochem. J. 58, 80. 

 Riemann, H., personal communication. 

 Stewart, B. T., and Halvorson, H. Orin, 1953. "Studies on the Spores of Aerobic 



Bacteria, I: The Occurrance of Alanine Racemase," /. Bad. 65, 160. 

 Stewart, B. T., and Halvorson, H. Orin, 1954. "Studies on the Spores of Aerobic 



Bacteria, II: The Properties of An Extracted Heat-stable Enzyme," Arch. 



Biochem. Biophys. 49, 168. 

 Wynne, E. S., 1957. "Symposium on Bacterial Spore Germination," Bad. Rev. 21, 



259. 



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