The February Secondary School Letter contains "A Unified Approach to Studies in Biology" by Prof. John H. Copenhaver and "The Future of Latin" by Prof. Norman A. Doenges.
Prof. Richard L. Pfister is the author of "The Terms of Trade as a Tool of Regional Analysis" in a fall issue (Vol. 3, No. 2) of Journal of Regional Science. His article "External Trade and Regional Growth: A Case Study of the Pacific Northwest" has been reprinted from the January 1963 issue of Economic Development and CulturalChange.
"The Split of the Feminist Movement in 1869" by Prof. Robert E. Riegel has been reprinted from the December issue of TheMississippi Valley Historical Review.
"Two Eighteenth-Century Celebrities" (Adams Smith and Samuel Johnson) by Prof. Clyde E. Dankert has been reprinted from the Autumn 1962 issue of The Dalhousie Review.
"Auxin Factor in Branch Epinasty" by Prof. Charles J. Lyon has been reprinted from the March 1963 issue of Plant Phys-iology.
"Sea-Level and Crustal Movements Along the New England-Acadian Shore, 4500-3000 B.p." by Prof. Charles J. Lyon and W. Harrison has been reprinted for private circulation from the January 1963 issue of TheJournal of Geology.