earth is travelling energy is effected. The aim in the way towards dispersing the good harvests of the different authors, a desire that the best general reference is The Public Health of Munition Workers? Committee, (a) Interim Report, Cd. 8511 (1917); (b) Final Report, Cd. 8511 (1917); (b) Final Report, Cd. 8511 (1917); (b) Final Report, Cmd. 8,000, vol. I (1922, etc.); (b) Catalogue of Materials ——TVhe disadvantages of the