[The skin sensitivity of the frog Rana temporaria to chlorides].

Analysis of total impulse reactions evoked in skin branches of the spinal nerves by application of 0.1-1.0 mol/l solutions of KCl, NaCl, NH4Cl, and CaCl2 to the skin in the grass frog showed that the reaction of the peripheral nervous elements depends not only on the concentration of a test-solution, but on the nature of the cation as well. The problem of specificity of acidic and saline sensitivity of the skin in amphibians is discussed.