| Citation | McIntosh, James (London). M.D. (Aberdeen). Professor of Pathology, University of London, and Director of the Bland-Sutton Institue of Pathology, Middlesex Hospital.
Distinguished for his researches into the histopathy of syphilis, particularly of the nervous system, and the sero-diagnosis of the disease : the bacteriology of pathogenic anaerobic bacteria, including the introduction of new methods for their isolation. He also contributed materially to our exact knowledge of the causation of dental caries. He has made important contributions to our knowledge of virus diseases, and has shown that malignant tumours induced in birds by tar can in some cases be propaged in series by their cell-free filtrate. |