with a foreword by the Rt. Hon. Sir Robert L. Borden. With a foreword by Sir E. V. Appleton. With a foreword by Charles C. Fries. With a foreword by M. E. Van Valkenburg. With a foreword by Sir Alfred Egerton. With a foreword by Theodore K. Steele. With a foreword by W. E. S. Turner. with a foreword by Peter Debye.