NUTRITIONAL AND GENETIC APPROACHES 



(cf. Schultz and Solomon, 1961), very important comparisons with 

 wild-type strains should be possible. We trust, however, that if the 

 mode of alkali metal transport is first described in bacteria it will 

 not be called a permease, unless we should at that time be ready to 

 speak also of the potassium -ion permease of red blood cells. 



93 



