The Steamer Churchill, built by Messrs. Hall, Russell & Co., for
service at Natal.--With full page of illustrations

Three-Way Tunnels

Falconetti's Continuously Primed Siphon.--Manner of carrying a
water course over a canal, river, or road.--With engraving

The Weibel-Piccard System of Evaporating Liquids.--
2 illustrations

II. TECHNOLOGY.--Coal Gas as a Labor--saving Agent in Mechanical
Trades.--By T. FLETCHER.--Gas as fuel.--Arrangement of burners
for disinfection, for drying glue, albumen, etc.--Best burners.
--Gas bars for furnaces, etc.

Instantaneous Photography.--Several illustrations

III. ELECTRICITY, MAGNETISM, ETC.--Electric Launches.--A
paper read before the Society of Arts by A. RECKENZAUN, and
discussion on the same.--Advantages of electromotive power.--
Cost of same.--Experimental electric launches

First Experiments with the Electric Light.--Sir Humphry
Davy's experiments in 1813,--With two engravings

Electrical Grapnel for Submarine Cables and Torpedo Lines.--
3 figures

Hughes' New Magnetic Balance.--1 figure