1. Bush, 1. E. (1952). Biochem. J., 50, 370.
2. Israel;the Department of Clinical Microbiology, Fromn; School, Hebrew University-Hadassah Medical; Jeruisalem,AUGUST
3. In many laboratories Proteuis species are identified by their urease activity, usually by inoculating bacterial cells into a medium containing urea plus an indicator and noting the colour change after four to eight hours,1943
4. proposed the use of a method based on the ability of certain Proteus species to form volatile amines. The procedure, however, is rather complicated and could hardly be used for routine diagnostic purposes;Proom; Woiwod,1951
5. have described a simple and rapid method, based on the decomposition of tryptophan by Proteus cells to form a compound giving a brown colour with ferric chloride;recently Singer, More; Volcani,1955