Volume 9, Issue 19
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Features
The Cycloid
Peer's Vertical Trip Hammer
Capt. Nortan's Projectile
Recent Foreign Inventions
Imponderable Agents—No. 6
Writing Fluids
[Abstract of a Lecture on the Chemistry of Writing Fluids, delivered before Bacon's Cincinnati Mercantile College, by Prof. Chas. W. Wright, and reported expressly for the Scientific American.]
Influence of Elevation upon Cholera
Oil and Health
List of Patent Claims
New Species of Rattlesnakes
Jointing of Belts
Sash Fastening
Door Strip
Tinning Iron Plates
Joiner's Clamp
Proportions of Vessels-Large Ships for Long Voyages
Connecting Hubs with Axles
Writing Pencil-Something to be Invented
Mechanical Typographer
Foreign Patents
Cement for Bricks and Stones
Regulating Water Level in Steam Boilers
Paper Feeder
Drying Starch
Reform of the Patent Laws—Fees for Foreigners—Extension of Patents—The New Rule
Presentation
Currents of the Pacific
Fires in our City—The Annihilator
Curing Grass for Hay by Steam
Report on Lubricating Oils in the Crystal Palace
Governors of Engines
Lubricators for Rail Car Axles
Baker's Furnace at the Crystal Palace
Experiments with Rotary Engines at the Crystal Palace
Awards of our Prizes
A Chapter of Suggestions, &C
Interesting to Planters
Elevated Promenade and Railroad for Broadway
Mechanics
Manufacturers and Inventors