In such wounds a liquid and penetrating caustic, like nitric acid or potash, is more thorough in its effects, but nitrate of silver, being portable and at hand, has often been employed with good result; its antiseptic power is a recommendation. Mr. Youatt reports that he was bitten several times by rabid animals, and after a free use of this remedy had no ill results; but the degree of security given must vary with the thoroughness and time of the application.