Features
Improved Compound Steam Boiler
The Right to Interfere
The Secret of Spring Weather
Two Views of the Voyage of Life
Climate of the Ice Age
Grasshopper Inventions Wanted
The Iron Horse
Zimmerman's Hydro-Electric Lamp and Extinguisher
The Diseases of the Silk Worm
Curious Experiment in Instantaneous Crystallization
Improved Saw Gummer
Spar Torpedo Warfare
Household Hints.--I
Arctic Notes
Improved Elevator
Improved Bill File
The Birds of Brazil
English Gardens
Recent American and Foreign Patents - June 12, 1875
Communications Received - June 12, 1875
Departments
- Letters
Correspondence - June 12, 1875
- Departments
Business and Personal - June 12, 1875
Notes and Queries - June 12, 1875
Index of Inventions - June 12, 1875
