A Treatise of Electro-Chemistry.

Edited by BERTRAM BLOUNT, F.I.C., etc.

The Manufacture of Chemicals by Electrolysis. A. J. Hale. Demy 8vo. 6/- net. ([See p. 39.])

Ozone. By Dr. E. K. Rideal, Ph.D., etc. Demy 8vo. 12/- net. ([See p. 39.])

Other Volumes in Preparation.