--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
Apparatus for Measuring Small Resistances.--With engraving
and diagram
Terrestrial Magnetism.
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