Winternitz, M. C. (Milton C.). “Fig. 7: Atelectatic Lobe of Dog Dying 24 Hours after Exposure, Showing Congestion of Capillaries with Slight Edema. Fig. 8: Same Lobe as That of Fig. 7.” Collected Studies on the Pathology of War Gas Poisoning. New Haven, Connecticut: Yale University Press, 1920. https://digital.sciencehistory.org/works/rj430475k.