Henry Alford Ruger

Affiliations: 
1910 Teachers College Columbia University, New York, NY 
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"Henry Alford Ruger" OR "Henry A Ruger"
Bio:

(1872 - 1947)
https://books.google.com/books?id=Xd8tAAAAYAAJ

Cross-listing: PsychTree

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Edward L. Thorndike grad student 1910 Columbia (Neurotree)
 (The Psychology of Efficiency: An Experimental Study of the Processes Involved in the Solution of Mechanical Puzzles and in the Acquisition of Skill in Their Manipulation)