Volume 8, Issue 192supp
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Features
Gas and Gas making.—II
The Light and Energy of Electricity and Gas
Automatic Feed Water Apparatus
On the Requisite Thickness of Cast-Iron Water Pipe under Heavy Pressure
The Great Suspension Bridge between New York and Brooklyn.—Pay of Officers, Engineers, and Workmen
The Polyphemus
The Australian Breakwater
A New Developer for Dry Plates
The Wear of Steel Rails
New Ironing Machine
Gilt Communion Cup
Summer Beverages
Hard Wood Chair
Test of the Eyes by Electric Light
The Care of Young Children
Musk
Microphotography with Tolles' 1/75 Inch Objective
Local Anæsthesia by Congelation
Nature of Cohesion and its Chemical Significance
Chlorophyl
Conveying Acids
On the Size of Molecules
M. Gaiffe's Galvanic Deposits of Cobalt
Extraction of Green Coloring Matter from Coffee
Chemical Composition of Mineral Coal
Abridged from Comptes Rendus for the Franklin Journal
Alizarin Carmine
Bleaching Ostrich Feathers
Apparatus for Measuring Fire Damp
A Mordant from Lees of Wine
Electro-Deposition of Nickel
Magnetization of Molten Iron
The Tar Colors and the Electric Light
Water in the Preparation of Raw Silk
[Communicated by the Instituto Technico Superiore of Milan]