Bowel Motility and Colonic Cancer

hilarity and movement (presumably including eye movement) during the compression phase due to the combined effects of warmth and nitrogen narcosis, thus assisting the flow of nitrogen-laden tears between the lens and cornea, while during decompression the chamber was, as is usual, rather cold and foggy, with the subjects relatively immobile, thus minimizing any flow of tears which might have helped to wash out the nitrogen. As the other eye was only slightly affected, it must be presumed that there was a difference in the fit, and hence in the flow of tears under the two lenses, causing either less absorption or better elimination of gas from the other eye.-I am, etc., JOHN BETTS. Chairman, National Medical Committee. British Sub-Aqua Club. London N.10.