I. CHEMISTRY. ETC.--Wolpert's Method of Estimating the
Amount of Carbonic Acid in the Air.--7 Figures.
Japanese Camphor.--Its preparation, experiments, and analysis
of the camphor oil.--By H. OISHI.
II. ENGINEERING AND MECHANICS.--Links in the History of the
Locomotive.--With two engravings of the Rocket.
The Flow of Water through Turbines and Screw Propellers.--By
ARTHUR RIGG.--Experimental researches.--Impact on level
plate.--Impact and reaction in confined channels.--4 figures.
Improved Textile Machinery.--The Textile Exhibition at
Islington.--5 figures.
Endless Rope Haulage.--2 figures.