Contents

01 November 1974
Vol 186, Issue 4162

About The Cover

Bubble formation and growth in ordinary gelatin is used as a model for decompression sickness (the bends). Results suggest methods for improving the safety and efficiency of diving. (Actual size of bubbles is about 0.8 millimeter in diameter.) Within the bubbles (right) can be seen images of adjacent bubbles. See page 443. [Theodore L. Bell and Richard H. Strauss, University of Hawaii School of Medicine]