Volume 71, Issue 15
You are currently logged out. Please sign in to download the issue PDF.
Features
An Improved Gun-Sight
An Improved Street Sweeper
Old and New Buildings of New York
Pork Packing in New Jersey
The New Croton Dam on the Cornell Site
German Shepherd Dogs
The Lowe Observatory
Hut-Building Seventeen-Year Cicadas
An Attempt at an Explanation