Originally published in 1935, this volume contains the text of the fifth Horsley Memorial Lecture, delivered by Sir Walter Langdon-Brown. This book will be of value to anyone with an interest in medical history, particularly the history of the discovery of the endocrine system.

Originally published in 1932, this book presents the content of Sir Walter Langdon-Brown's inaugural lecture upon taking up the position of Regius Professor of Physic at Cambridge University. This book will be of value to anyone with an interest in the development of medicine and the history of science.

First published in 1941, this book contains the substance of the Linacre Lecture for that year, delivered by Sir Walter Langdon-Brown at St John's College, Cambridge. It presents a concise account regarding 'the origin of witchcraft from primitive religion and the part it played in the evolution of remedies through the magical phase to empirical success aided by laboratory investigation'. This book will be of value to anyone with an interest in the history of science and the development of medicine.