A - Rectangular booklet by Glenn O. Blough. b/w photos (cover + pg. 7). Text designed for primary, middle, and upper education. Subjects include how rocks differ and how they are used, how rocks are formed and how they change, and what minerals are and how they are used. Subjects are subdivided and contain discussion questions and activities. "The Instructor Series of Illustrated Units No. 5 Rocks and Minerals" 7pgs. B - A Portfolio of Pictures - Rocks and Minerals, 4-fold paper with 26 b/w photos regarding rocks and minerals with captions Color: WH