Osborne's Process of Photolithographing
Recent American Patents
Bourne's Heating and Shaving Apparatus
Cornelius and Baker's Electric Bracket
Extension of Patents--For Whose Benefit they are Granted
The Citizen's Great Duty
The Avery Engine
Is Gunpowder Liable to Spontaneous Combustion?
Beware of Raw Pork
Fined For Not Working
Expansion of Liquids
Blowing Up of the Albemarle.
To Our Readers
Notes and Queries