XXIX. THE EVOLUTION OF MATTER. By W.C.D. Whetham, M.A., F.R.S. - Darwin and Modern Science - 38 - A. C. Seward

XXVIII. THE GENESIS OF DOUBLE STARS. By Sir George Darwin, K.C.B., F.R.S.Trinity College, Cambridge.

XXIX. THE EVOLUTION OF MATTER. By W.C.D. Whetham, M.A., F.R.S.