Volume 14, Issue 21
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Features
Strength of Camels
Artificial Pearls
M. Aime Bonpland
Action of Waves
Copying Ink
Photographic Agents
Camphor Ice
The Great Chess Contest
To Destroy the Turnip Fly
Ornamenting Glass
Minerals of California
Trees for Telegraph Posts
Certificate of Patent Validity
Soup and Pickles
Floyd's Retort Covers
Preserving Butter
Improved Shower Bath
Composition for Black Lead Pencils
Meteorology--Our Climate--No. 1
Removal
To Inventors and Patentees--Removal
Are Patents Valuable?--Lobbying
American Lumber Trade--Balancing Saws
Tanning
Ships of War
The Cigar-Shaped Steamer Adapted for War
The Winans' Steamer
Defects of Gutta Percha
Ipecacuanha a Cure for Delirium Tremens
New Kind of Cider
Mechanics
Inventors, Millwrights, Farmers and Manufacturers