History of the Great War: Medical Services - Pathology by Major-General Sir W. G. Macpherson Major-General Sir W. B. Leishman and Colonel S. L. Cummins provides a detailed account of the organization and functioning of medical pathology services during World War I. The book covers aspects like the physiology of wounds gas gangrene bacteriology and infectious diseases such as tetanus and typhus fever. It emphasizes the role of pathologists in military hospitals highlighting challenges and innovations in medical research during the war.