r of 1842. 5015

The Elias Electro-Motor. 5016

Bjerknes's Experiments. 7 figures. 5016

The Arc Electric Light. By LEO DAFT. 5018

Hedges' Electric Lamps. 4 figures. 5019

Electric Railway Apparatus at the Paris Electrical
Exhibition. 17 figures. Lartigue's switch controller,
elevation and sections.--Position of commutators during
the maneuver.--Pedal for sending warning to railway
crossing, with elevation and end and plan views.--Electric
Alarm.--Lartigue's bellows pedal, with plan and
sections.--Brunot's Controller.--Guggemos' correspondence
apparatus.--Annunciator apparatus.--Lartigue's controller
for water tanks.--Verite controller for water tanks. 5019

The Telephonic Halls of the Electrical Exhibition.
1 figure. 5022

The Action of Cold on the Voltaic Arc. 5022

III. TECHNOLOGY AND CHEMISTRY.--Industrial Art for Women. 5026

Photography upon Canvas. 1 figure. 5026

Detection of Starch Sugar Sirup Mixed with Sugar
House Molasses. 5026

False Vermilion. 5026

The Position of Manganese in Modern Industry.--By
M.V. DESHAEYS. Ferro-manganese.--Cupro-manganese.--
Manganese bronzes.--Metallic manganese.--Manganese
German silver.--Phosphorus bronze. 5027

The Economical Washing of Coal Gas and Smoke.--M.
Chevalet's method. 5027

Determination of Nitrogen in Hair, Wool, Dried Blood,
Flesh Meal, and Leather Scraps. By Dr. C. KRAUCH. 5028

Testing White Beeswax for Ceresine and Paraffine. By
A. PELTZ. 5028

The Prevention of Alcoholic Fermentation by Fungi.
By Prof. E. REICHARD. 5028

New Reaction of Glycerine. 5028

Lycopodine. 5028

Conchinamine. 5028

Chinoline.