and by the Librarians and Staffs ofthe University and the Public Libraries at Southampton. Finally, we wish to thank Mrs H. G. Jerrard and Miss A. J. Tutte for

units have been included. References, which now number approximately 650, have been brought up to date. The most recently accepted values of the physical consta

and by the Librarians and Staffs of the University and the Public Libraries at Southampton. Finally, we wish to thank Mrs H. G. Jerrard and Miss A. J. Tutte for

units have been included. References, which now number approximately 650, have been brought up to date. The most recently accepted values of the physical consta