The LancetVolume 15, Issue 394, 19 March 1831, Pages 818-821THE LANCET.: London, Saturday, March 19, 1831Author links open overlay panelShow moreShareCitehttps://doi.org/10.1016/S0140-6736(02)99354-2Get rights and contentFirst page previewClick to open first page previewView PDFRecommended articlesReferences (0)Cited by (0)View full textCopyright © 1831 Published by Elsevier Ltd.