A page from the journal of Henry Walsh Mahon showing the effects of scurvy, from his time aboard HM Convict Ship Barrosa (1841-2).
Featured on PDR in the essay Scurvy and the Terra Incognita
One remarkable symptom of scurvy, that constant bane of the Age of Discovery, was the acute and morbid heightening of the senses. Jonathan Lamb explores how this unusual effect of sailing into uncharted territory echoed a different kind of voyage, one undertaken by the Empiricists through their experiments in enhancing the senses artificially.