Volume 6, Issue 141supp
You are currently logged out. Please sign in to download the issue PDF.
Features
The Gallery of French Furniture
Improved Locomotive Exhaust Chamber
Paris Exhibition Elevator
The Metallurgy of Platinum
The Jablochk off System of Electric Illumination at the Paris Exhibition
The Sewage System of Paris
The Pneumatic Process of Sinking Piles
New Safety Valve
The Pioneer Railway
Improved Feed-Water Heater
A New Form of Toothed Gearing—Elliptical Bevel Wheels
Making Electrotype Plates from Drawings
The Leaching of Silver Ores at Baranca, Mexico
A New Method of Grinding Glass Specula
Sun Spot Screen for small Telescopes
An Improved Camera Lucida
Photographic Engraving in Half-Tones
Professor Henry Draper's Eclipse Observations
Recent Photographic Observations of the Solar Surface
Cleaning of Glass Plates and Lenses
Poisoning by Paris Green
Hygienic Congress
Design for an Album Cover
Concerning Bread
The Electro-Capillary Phenomena of the Human Body
From the French of E. Ouimus and Charles Legras
Scientific Phenomena and their Relations
Annual Meeting of the American Association for the Advancement of Science
Magnesium Nitride
Chemical News Notices
Thermometric Scales
California Gold Mining
The Temperature of Flames
The Evolution of Vertebrate Limbs
The Precious Metals
Total Yield of the Earth Since the Creation