Author:Spencer Trotter
Professor, Swarthmore College
WorksEdit
Articles in Popular Science MonthlyEdit
- "The American Robin and his Congeners" in Popular Science Monthly, 33 (May 1888)
- "Birds of the Grass Lands" in Popular Science Monthly, 42 (February 1893)
Some or all works by this author are in the public domain in the United States because they were published before January 1, 1928.
The longest-living author of these works died in 1931, so these works are in the public domain in countries and areas where the copyright term is the author's life plus 91 years or less. These works may be in the public domain in countries and areas with longer native copyright terms that apply the rule of the shorter term to foreign works.
