I. CHEMISTRY AND METALLURGY.--Gallisin, an Unfermentable
Substance in Starch Sugar.
The Combining Weights, Volumes, and Specific Gravities of
Elements and Compounds.
Analysis of Zinc Ash and Calcined Pyrites by Means of
Ammonium Carbonate.
II. ENGINEERING AND MECHANICS.--Petroleum as a Fuel in
Locomotive Engines.--By THOMAS URQUHART.--Spray
injector.--Driving locomotives.--Storage of petroleum.
Improved Gas Light Buoy.--2 figures.
Project for a Roadstead at Havre.--With map and views of
different breakwaters.
Improved Catch Basin.--2 figures.
Water Power with High Pressures and Wrought Iron Water
Pipe.--By HAMILTON SMITH, JR.--Methods of conducting water
and transmitting power.--Texas Creek pipe and aqueduct.--4
figures.
Parachute Hydraulic Motor.
Improved Shafting Lathe.--1 figure.
Power Straightening Machine.--1 figure.
Hydraulic Mining in California.--By GEO. O'BRIEN.
III. TECHNOLOGY.--Emerald Green: Its Properties and
Manufacture.--Use in wall paper.--ROBERT GALLOWAY.
Charcoal Kilns.--Extra yield.--2 figures.
IV. ARCHITECTURE--Entrance, Tiddington House, Oxon.--An
engraving.
V. ELECTRICITY, LIGHT, HEAT. ETC.--The Temperature of the
Earth as shown by Deep Mines.
New Arrangement of the Bichromate of Potash Pile.--3
figures.
The Distribution of Electricity by Induction.--1 figure.
Electricity Applied to the study of Seismic Movements.--Apparatus
for the study of horizontal and vertical seismic
movements, etc.--8 figures.
New Accumulators.--3 figures.
Industrial Model of the Reynier Zinc Accumulator.
The History of a Lightning Flash.--By W. SLINGO.
Researches on Magnetism.