Volume 7, Issue 163supp
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Features
A Novel Boat Rig
Coal-Cutting Machine for Manual Power
Railway Notes
The St. Gothard Tunnel
Oliver Evans' Model Mill of 1788
Hints on Building Chimneys
Geodetic Surveys
Alum in Baking Powders
Preece's Improvements in Telephones
Edison's Recent Telephonic Inventions
Ceresin
A New form of Transmitting Telephone
The Watch Telephone
Some Modifications of the Microphone and Telephone
New Stethoscopic Microphone
A Report on underground Telegraph Wires
A Simple Microphone
Improved Musical Condenser
The Conditions of Health in the Infant
Malaria Not of Vegetable Origin
Dyspepsia from Impaired Movements of Stomach
Poisonous Tin Plate
Relations of Syphilis to the Public Health
Suicide in France
Mortality in the Principal Cities of the World
Glycerine Cement
Dyes for Wool to Stand Milling
The Origin of Temporary and Variable Stars
New Blue on Flannel
Artificial Coloring Matters
Blasting Gelatine
Caustic Alcohol
(Sodium Alcohol And Potassium Alcohol.)