THE LIFE AND LETTERS OF JOHN FISKE. By JOHN SPENCER CLARK. Illustrated. Demy 8vo. 2 vols. 50s. net. LETTERS OF ROBERT WATSON GILDER. Edited by ROSAMOND GILDER. Illustrations. Demy 8vo. 14s. net. THE MEMORIAL BIOGRAPHY OF W. G. GRACE. By LORD HAWKE, LORD HARRIS, and Sir HOME GORDON. Published under the auspices of M.C.C. Demy 8vo. Illustrated. 21s. net. "Of inestimable value.... Sir Home Gordon must have had an extremely difficult and laborious task, and is to be congratulated on the way in which he has accomplished it."--_Field._ IV. Scientific and Medical. THE LIFE OF ELIE METCHNIKOFF. By OLGA METCHNIKOFF. Translated by Mrs. R. L. DEVONSHIRE. Frontispiece. Demy 8vo. Reviewing the French edition of this book in January 1921, _The Times Literary Supplement_ said: "Madame Metchnikoff's excellent analysis of her husband's scientific theories does not hinder her from showing us the living, the lovable, the extraordinary human being who conceived so many ideas, who developed so many theories, inventions, innovations.... Mme. Metchnikoff has made us admire the man of science and warmly the man." THE LIFE OF PASTEUR. By RÉNÉ VALLERY-RADOT. Translation by Mrs. R. L. DEVONSHIRE. New Edition with a preface by Sir WILLIAM OSLER, Bart., M.D., F.R.S. 2nd edition. Demy 8vo. Portrait. 10s. 6d. net. "A classic of scientific biography."--_Saturday Review._ "The translation of M. Vallery-Radot's admirable biography of the great Frenchman is a book which every English-speaking admirer of Pasteur will desire to possess."--_The Athenæum._ "Pasteur's career is set out in the fullest detail, making an absorbing narrative, and the scientific, social, and political environment is sketched with vivid accuracy. It is the picture of a great man, a great career, and a great epoch in the history of France and of science."--_The Times Literary Supplement._ SIR VICTOR HORSLEY. By STEPHEN PAGET. Foreword by LADY HORSLEY. Illustrated. Demy 8vo. 21s. net. "All the aspects of Horsley's strenuous life are depicted with the writer's accustomed sympathy and skill. Mr. Paget has given us a study of absorbing interest.... We are never allowed to lose sight of the restless energy and indomitable courage that characterised all that Horsley undertook."--_British Medical Journal._