I have, unfortunately for my own labour, very few acknowledgements to make of help from the writings of earlier workers in the same field. My chief obligation is to the late Dr Murchison’s historical introduction to his ‘Continued Fevers of Great Britain.’ I ought also to mention Dr Robert Willan’s summary of the throat-distempers of the 18th century, in his ‘Cutaneous Diseases’ of 1808, and the miscellaneous extracts relating to Irish epidemics which are appended in a chronological table to Sir W. R. Wilde’s report as Census Commissioner for Ireland. For the more recent history, much use has naturally been made of the medical reports compiled for the public service, especially the statistical. _September, 1894._ CONTENTS. PAGE CHAPTER I. TYPHUS AND OTHER CONTINUED FEVERS. The Epidemic Fever of 1661, according to Willis 4 Sydenham’s epidemic Constitutions 9 Typhus Fever perennial in London 13 The Epidemic Constitutions following the Great Plague 17 The Epidemic Fever of 1685-86 22 Retrospect of the great Fever of 1623-25 30 The extinction of Plague in Britain 34 Fevers to the end of the 17th Century 43 Fevers of the seven ill years in Scotland 47 The London Fever of 1709-10 54 Prosperity of Britain, 1715-65 60 The Epidemic Fevers of 1718-19 63 The Epidemic Fevers of 1726-29: evidence of Relapsing Fever 66 The Epidemic Fever of 1741-42 78 Sanitary Condition of London under George II. 84 The Window-Tax 88 Gaol-Fever 90 Circumstances of severe and mild Typhus 98 Ship-Fever 102 Fever and Dysentery of Campaigns: War Typhus, 1742-63 107 Ship-Fever in the Seven Years’ War and American War 111 The “Putrid Constitution” of Fevers in the middle third of the 18th Century 120 Miliary Fever 128 Typhus Fever in London, 1770-1800 133 Typhus in Liverpool, Newcastle and Chester in the last quarter of the 18th century 140 Fever in the Northern Manufacturing Towns, 1770-1800 144