THE tercentenary of the birth of John Locke occurred on Aug. 29 last, and to mark the event Messrs. J. and E. Bumpas, Ltd., have brought together at the Old Court House, Oxford Street, London, W.l, a well displayed and comprehensive series of engravings, manuscripts, and printed books, including the first edition of Locke's celebrated “Essay on the Human Understanding”, as well as letters from Boyle, Newton, Sloane, and other men of his period. The collections are mostly in the ownership of the Earl of Lovelace, having happily suffered no disturbance or vicissitudes since their original assignment within the family. Various special loans that have been received greatly enhance the personal, artistic, and literary interest of the series. Thus, the impressive three-quarters length portrait of Locke, from Christ Church, Oxford, is there, whilst recently Lord Lee of Fareham has sent in an early plaster statuette of Locke, by an Italian hand. A letter from Locke, as a schoolboy, to his father, tells of seeing a “company of Quakers” in Westminster Hall, on business bent, whose leader's hat was “shook off”—recalling that Charles II. removed his own hat in the presence of Penn, explaining that it was the custom at Whitehall for only one person at a time to remain covered.