“…II) and others, it demands but few details here. As Fabian and Winslow (1929) point out, all electrolytes, studied by them, stimulate bacterial growth in low and inhibit it in higher concentrations. They found maximum stimulation to occur with a "Na concentration of 0.10 M and pH of about 7.5;" thus, in the present work, M/10 NaCI, pH 7.4 to 7.8, served as a control as well as did the media to which no salts were added.…”