with a foreword by Peter Debye. with a foreword by A. D. Baxter. With a foreword by Peter G. Masefield. With a foreword by H. Berry. With a foreword by I. I. Rabi. With a foreword by Edward Wisser. With a foreword by Edward Hughes. With a foreword by E. D. Hughes. With a foreword by J. Heyrovsky. With a foreword by Walter C. Alvarez.