Volume 12, Issue 31
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Features
Trees on Farms
Evaporation of Salt and Fresh Water
Restoring Oxydized Bronze Figures
List of Patent Claims
The Amount of Air We Breathe
Elastic Horn
Hydraulic Cement for Tan Vats
Curves
Priming in Steam Boilers
Heating by Steam--The Boiler
Sowing Flax Seed
Inks
The Commissioner of Patents
Stone Cutting by Steam
Purifying Gas
Inventions Wanted--Harvesters
Improvement in Husking Machines
Etching Marble
Mind and Matter
India Rubber Patent Cases
Lead, Lead Pipe and Shot
Railroad Expenses
Correction
The Pressure of Confined Gunpowder When Fired
Meerschaum Pipes
Electric Printing on Glass
Lightning Conductors
Turbine and Overshot Wheels
Mechanics
Inventors, and Manufacturers