1. Artusio, J. F. Jnr. (1954). “Di-ethyl ether analgesia: a detailed description of the first stage of ether analgesia in man.”J. Pharm., 111, 343.
2. Geddes, I. C., and Gray, T. C. (1959). “Hyperventilation for the maintenance of anaesthesia.”Lancet, 2, 4.
3. Gray, T. C. and Rees, G. J. (1952). “The role of apnoea in anaesthesia for major surgery.”Brit. med. J., 2, 89.
4. Gray, T. C. (1954). “Disintegration of the Nervous System.”Ann Roy. Coll. Surg. Engl., 15, 402.
5. Guedel, A. E. (1937). “Inhalation anaesthesia—a fundamental guide.” New York—Macmillan.