Since bacterial cells are basically similar to other living cells (Mudd, 1954; DeLamater, 1954) they are also susceptible to the histochemical analyses performed on higher cells. The present study, employing histochemical techniques, may help to resolve some of the problems and areas of disagreement posed by previous investigations in bacterial cytology (Bisset, 1951; Robinow and Hannay, 1953; ...