--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
Desruelles's Electric Lighter. 1 figure. 4976
Solenoid Underground Wires in Philadelphia. 4976
Dr. Herz's Telephonic Systems. 2 figures. 4976
Decision of the Congress of Electricians on the Units of
Electric Measures. 4977
Secondary Batteries. By J. ROUSSE. 4977
III.
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