This is the first of two volumes reporting Nightingales forty years of work to improve public health in India. It begins with her work to establish the Royal Commission on the Sanitary State of the Army in India, for which she drafted questionnaires, analysed returns, and did much of the final writing, going on to promote the implementation of its recommendations. In this volume a gradual shift of attention can be seen from the health of the army to that of the civilian population. Famine and epidemics were frequent and closely interrelated occurrences. To combat them, Nightingale recommended a comprehensive set of sanitary measures, and educational and legal reforms, to be overseen by a public health agency. Skilful in implementing the expertise, influence, and power of others, she worked with her impressive network of well-placed collaborators, having them send her information and meet with her back in London. The volume includes Nightingales work on the royal commission itself, related correspondence, numerous published pamphlets, articles and letters to the editor, and correspondence with her growing network of viceroys, governors of presidencies, and public health experts. Working with British collaborators, she began this work; over time Nightingale increased her contact with Indian nationals and promoted their work and associations.