Hydrogen. Was formerly employed by Beddoes as a remedy for Phthisis; and by Reuss, in Rheumatism and Paralysis; but it has very limited medicinal power, and is now rarely employed. An animal immersed in its vapour dies-, not apparently from any poisonous quality of the gas, but from the absence of Oxygen. Diluted with two-thirds of atmospheric air, it occasions some diminution of muscular power and sensibility, and also of the force of the heart's action. (Dunglison.)

* Journ. de Progres des Sciences Med, vol. ii. p. 63.

Atlas of Cutaneous Eruptions.

Edin. Med. Surg. Journ., xix. 399.

§ Med. Zeitung, 1843.

|| Cyc. Pract. Med., vol ii. p. 548. ¶ Ed. Med. Surg. Journ., vol. xxviii ** Obs. on Tetanus, 1835.