Atomic Spectra, By R.C. Johnson. M.A. (Oxon), D. Sc. (Lond.) Sometime Lecturer in Physics in Queen' University, Belfast and in the University of London, King's College. Master of Queen's College, University of Melbourne.  With 38 Diagrams. 2nd Edition published in 1950 by Methuen & Co., Ltd of London.

It is a feature of the history of the subject that the study of atomic physics was accompanied by a partial neglect of that of classical mechanics. This led to the unsatisfactory situation in which the physicist was expected to assimilate the elements of quantum and statistical mechanics without understanding the classical foundations on which these subjects were built.  Methuen's Monograph on Physical Subjects were designed to fill this void.

Condition:  Very Good for age.  Sound binding.  Spine cloth toned.  Light wear to top and bottom of spine and board tips.  Pages clean, tight and whole.  6  3/4"  x  4  1/4" with 120 pages.