76 Table 14 Effect of Sodium Chloride Concentration on Alligator Peripheral Blood Lymphocytes Cultured with PHA a NaCl Concentration Stimulation Index^ 0.117 Mc 47 0.137 M 85 0.157 M 142 0.177 M 145 0.197 M 59 0.217 M 1.0 (a) Final concentrations of NaCl in the culture medium. (b) Cultures were incubated at 32C with or without PHA (1 yl), pulsed on day 4 and harvested on day 5. (c) The concentration of NaCl in mammalian MEM was calculated from the GIBCO formulation to be 0.117 M.