Features
The Redoutable
Demolition of Rocks under Water without Explosives—Lobnitz System
Electrical Standards
Improved Changeable Speed Gearing
Progress in Engineering
The Two or Three Phase Alternating Current Systems
The London Paris Telephone
The Manufacture of Phosphorus by Electricity
New Bleaching Apparatus
The use of Compressed Air in Conjunction with Medicinal Solutions in the Treatment of Nervous and Mental Affections
Being a New System of Cerebro-Spinal the Rapeutics
