Engineering Inventions since 1862.--By Sir F. J.
BRAMWELL.--Bridge construction.--Pneumatic
Foundations.--Construction of tunnels.--Canals and river
improvements.--Military engineering appliances.--Uses of
cement.--Preservation of wood. 7787
III. PHYSICS, ELECTRICITY, ETC.--Electric Light Apparatus for
Military Purposes.--With engraving. 7790
Electricity and Magnetism.--By Prof. F. E.
NIPHER. 7790
The Hydrodynamic Researches of Prof. Bjerknes.--By C.
W. COOKE.--5 figures. 7791