Alfred Harbor. South Africa. 3 figures. 4967

Improved Steam Boiler. 1 figure. 4968

The Elevated Railways of New York. 4968

Some of the Developments of Mechanical Engineering during the
Last Half Century. British Association Paper. By SIR FREDERICK
BRAMWELL. The steam engine.--Evaporative condenser.--Steam
navigation.--Marine governors.--Light engines and boilers.--The
Perkins system.--Ether engine.--Quicksilver engine.--Locomotive
engines.--Brakes.--Motors.--Transmission of power.--Compressed
air locomotives.--Hydraulic transmission of power.--Electric
transmission of power.--The manufacture of iron and steel.--
Bridges.--Machine tools.--The sewing machine.--Agricultural
machinery.--Printing machinery. 4968

Amateur Mechanics: Metal turning, 29 figures. Rotary cutters,
12 figures. Wood-working and lathe attachments, 9 figures. 4971

A New Method of Keeping Mechanical Drawings. 4978

Achard's Electric Brake for Railway Use. 2 figures. Plan and
elevation. 4974

II. ELECTRICITY, ETC.--Electricity. What it is and what may be
expected of it. By JACOB REESE. 4974

Electric Light Apparatus for Photographic Purposes. By A.J.
JARMAN. 2 figures. 4976