Having trained in Edinburgh as a surgeon and served aboard Royal Navy vessels, Sir James Clark (1788-1870) developed a particular interest in the spread of the tuberculosis pandemic in Europe. A licentiate of the Royal College of Physicians from 1826, and elected to the Royal Society in 1832, he became a trusted physician and friend to Queen Victoria and Prince Albert. This early work of 1820 was based on his first-hand knowledge of the treatment...