Report on the influenza epidemic of 1889-90

Progression of the pandemic of Russian Flu through the fall and winter of 1889-90 around the globe.
Source: Henry Parsons (1846-1913) Report on the influenza epidemic of 1889-90 / by Dr. Parsons, London : Printed for H.M.S.O. by Eyre & Spottiswoode, 1891. Wellcome Collection gallery