Articles NOTES ON BOOKS Br Med J 1925; 2 doi: https://doi.org/10.1136/bmj.2.3386.956 (Published 21 November 1925) Cite this as: Br Med J 1925;2:956 Article Related content Metrics Responses Peer review Related articles Correction Correction Published: 28 December 1946; Br Med J 2 doi:10.1136/bmj.2.4486.1012-a