of the universe, and of modern methods of studying the problem.--1
illustration.

II. ELECTRICITY.--The Production of Hydrogen and Oxygen through
the Electrolysis of Water.--A valuable paper on the electrolysis
of water on a large scale, with apparatus employed therefor.--4
illustrations.

III. MECHANICAL ENGINEERING.--An English Steam Fire Engine.--A
light fire engine built for East Indian service.--1 illustration.

IV. MEDICINE AND HYGIENE.--A Case of Drowning, with Resuscitation.--By
F.A. BURRALL, M.D.--A full account of a remarkable
case of resuscitation from drowning, with full details
of treatment.

V. METALLURGY.--How Gas Cylinders are Made.--The manufacture
of cylinders for highly compressed gases, a comparatively
new and growing industry.--6 illustrations.

Refining Silver Bullion.--The Gutzkow process in refining silver
bullion with sulphuric acid.--1 illustration.

The Treatment of Refractory Ores.--A new process for the extraction
of metal from refractory ore.--1 illustration.

Weldless Steel Chains.--An exhaustive examination of this curious
process, and very full illustrations.--43 illustrations.

VI. METEOROLOGY.--Climatic Changes in the Southern Hemisphere.