A - Rectangular booklet by Glenn O. Blough. Contains b/w photos (cover + pg. 7) relating to trees. Text designed for primary, middle, and upper education. Subjects include kinds of trees, life of a tree, and conservation. Subjects subdivided and contain discussion questions and activities. "The Instructor Series of Illustrated Units No. 9 - Trees" 7 pgs. B - A portfolio of Pictures - Trees, 4-fold paper 31 b/w photos pertaining to trees and forests, with captions Color: WH