THE Outlook Tower, standing on the Castle Hill, Edinburgh, was intended by the late Sir Patrick Geddes to express and exhibit stages of social development, using the history and geography of Edinburgh and Scotland as particular illustrations, and passing from them to the British Empire, the United States of America, Europe, and the world as a whole. The Tower was founded by him in 1892 as a type museum of geography, history and sociology and as a centre of civic and regional study; and it will always be associated with his name. There could be no more appropriate means of commemorating Sir Patrick Geddes' work and influence than by establishing the Outlook Tower upon a permanent basis, and thus enable it further to be developed as an active centre for the dissemination of his ideas. With this end in view, a memorial, signed by a number of his friends and admirers, has been circulated, inviting contributions and asking also for the loan of any original letters or personal reminiscences, which with a considerable body of material already collected will be classified and edited so as to be available to students of civics and sociology. As Geddes was the apostle of town and regional planning, and devoted his life to promote intelligent and stimulating relationships between man and his environment, we hope that the response to the appeal now made will be ready and generous. Contributions should be sent to Sir Thomas B. Whitson, 21 Rutland Street, Edinburgh, and letters or other personal communications bearing upon Sir Patrick Geddes' life and work to the honorary secretary, Outlook Tower, Castlehill, Edinburgh.