South African Medical Journal - Volume 10, Issue 2, January 1936

It is well established that after thoracic operations there is considerable interference with the mechanical function of the lungs, with reduction of vital capacity to about half the pre-operative value, and also reduction amounting to about one-third of the pre-operative value in the residual volume.

The pathogenicity of pure, very fine crocidolite particles and of a mixture of crocidolite and quartz was investigated after intratracheal injection of 50 mg. of these dusts into the lungs of rats.

A case of persistent thymus diverticulum on both side of the neck is descriptionbed.