Showing papers in "Bulletin of the Torrey Botanical Club in 1960"

Principles of paleobotany

Abstract: WILLIAM H. DENNEN, Massachusetts Institute of Technology Revised Printing. This book presents mineralogy as a study of basic geometrical, chemical, and physical relationships of all matter. Nonmathematical in approach, it emphasizes principles rather than techniques of mineral recognition. The concept of symmetry is developed from first principles, and crystal systems are derived rather than described. Determinative Tables incorporate a new method of portraying hardness, graphically showing progression in this characteristic among hundreds of minerals. Rev. Print., 1960. 453 pp. Illustrated. $7.50