
The SciencesJanuary 1, 1953
Wood Structure
Trees are still the most versatile source of structural material. Each species has a characteristic organization of cells due to the special conditions of its existence

Wood Structure
Trees are still the most versatile source of structural material. Each species has a characteristic organization of cells due to the special conditions of its existence

Synthetic Fibers
The production of the euphoniously named new textile substances has now outstripped that of wool. What is the physical basis of this technological development?