1. Haldane, Kellas and Kennaway . Journal of Physiology, vol liii.
2. Foster and Haldane . "The Investigation of Mine Air." (Griffin and Co., 1905.)
3. Since the address was written Dr. Haldane has told me of a number of victims of the same accident who were brought out alive by the search party, but in whose case the machine was wrecked beyond repair. They soon died.
4. Hasselbnch and Lindhard, nuoted by Bainbridge.
5. Barcroft, Cooke, Hartridge, Parsons and Parsons . Journal of Physiology vol. liii., p. 451, 1920.