Contents volume 68

CONTENTS VOLUME 68 R.J.W. Henry. Excitation of atomic positive ions by electron impact

1

F. Combley, F.J.M. Farley, E. Picasso. The CERN muon (g - 2) experiments

93

K. Holinde. Two-nucleon forces and nuclear matter

121

P. van Nteuwenhuizen. Supergravity

189