First Principles in Chemistry, 1937
Compiled by New York City high school teachers as a textbook to be used throughout the state of New York.
Understanding Questions: C, part of the “Supportive Reading Skills” series from Dexter and Westbrook, Ltd. 1973.
By Richard A. Boning (har har har)
Physics: Its Marvels and Mysteries, by Dr. Daniel Q. Posin (pictured), 1961.
Observer theme by Zack Sultan