Common salt is an ordinary domestic remedy for bleeding at the nose, and even for haemoptysis, and cases of the former are sometimes favorably influenced by it when given in drachm doses. Some attribute any benefit from salt in hemorrhage to the nausea excited, but it is more likely from a reflex contraction of vessels consequent on irritation of gastric nerves (Husemann). It has been stated that in embolism, the collateral circulation becomes better established under the influence of an alkali (soda carbonate), though the thrombus itself is not affected (British and Foreign Review, ii., 1861).