Journey Smell Map: Paris, 1790

In the early years of the Revolution, Hallé was commissioned by the Royal Society of Medicine to undertake a sanitary survey of Paris in order to investigate its noxious smells, which were thought at the time to be a direct cause of disease. Hallé and Boncerf set out in the early morning on a 6-mile round-trip along the banks of the Seine. This practice-based research comprises a pictorial itinerary illustrating the key olfactory findings of Jean-Noel Hallé and Boncerf conveyed as a journey map in the style of an imaginary pilgrimage map from 1250 CE.