Features
Hand Dynamo Machines
The Electric Lighting of the Comptoir D'Escompte (Paris)
Telegraphing without Wires
Recent Progress in Telephony
The Thickness of Wire Necessary to Carry Different Electric Currents without Overheating
On Electric Meters
Wartmann's Rheolyzer
A Projecting Phenakisticope
Hydraulic Organs
The Forth Bridge
Trial of a Folding Boat
Bazin's Submarine Excavator
On a New System of Hydraulic Propulsion
The St. Gothard Tunnel
Straw Lumber
Raising Gladioli from Seed
House at Battle
Formation of the Diamond
Soils and Root Formation
How to make Straw Roofs
Value of the Rye Plant
Alumina
Utilization of Blood
Quassiin
Maltose
Modern Theories of Color
A Simple Method of Recovering the Silver from Washed Emulsion
A Few Notes on the Larval State of the Pea-Weevil
New Plastic Compound
Destroying Insects under Glass
Departments
- Departments
Patents
