Articles Reviews and Notices Br Med J 1891; 1 doi: https://doi.org/10.1136/bmj.1.1575.531 (Published 07 March 1891) Cite this as: Br Med J 1891;1:531 Article Related content Metrics Responses Peer review Related articles Correction A Correction Published: 07 March 1903; Br Med J 1 doi:10.1136/bmj.1.2201.587-a