I. CHEMISTRY.--Chlorides in the Rainfall of 1884.
Apparatus for Evaporating Organic Liquids.--With description
and 3 figures.
II. ENGINEERING AND MECHANICS.--Relative Costs of Fluid and
Solid Fuels.
The Manufacture of Steel Castings.
Science in Diminishing Casualties at Sea.--Extract of a paper
read before the British Association by DON ARTURO DE MARCOARTER.
Improved Leveling Machine. 9 figures.
The Span of Cabin John Bridge.
Improvements in Metal Wheels. 3 figures.
Apparatus for the Production of Water Gas. 3 figures.