Features
The Panama Canal Bubble
An Improved Guide for Sewing Machines
A Hemming Attachment for Sewing Machines
A Solar Attachment for Transit Instruments
An Improved Bridle for Horses
An Improved Folding Scaffold Bracket
Hot Water to Drive Cattle from Tracks
An Improved Garden Implement
The New Croton Aqueduct--the Harlem River Siphon and Pumping Apparatus
Home Made Grills and Gratings
The McLeod Pneumatic System of Heating, Ventilating and Cooling, and Improved Subway Construction
The Gramophone
New York City Aqueduct--Its Engineering Features and Design
Scientific American Building Edition- July 19, 1890
Departments
- Reviews
New Books and Publications- July 19, 1890
- Departments
Recently Patented Inventions- July 19, 1890
Notes and Queries- July 19, 1890
To Inventors- July 19, 1890
Index of Inventions- July 19, 1890
Business and Personal- July 19, 1890
