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JSTOR: The Secret of the Green Thumb.
The Secret of the Green Thumb. By Dr. Henry T. Northen and Rebecca T. Northen. 430 pp., illustrated. The Ronald Press, New York. 1954. $5. ...
Chicago Journals - The Quarterly Review of Biology
All Journals > The Quarterly Review of Biology > December 1954 > Book Review. The Secret of the Green Thumb. Henry T. Northen, Rebecca T. Northen ...
www.journals.uchicago.edu/ cgi-bin/ resolve?id=doi:10.1086/ 400457