BOOK REVIEWS
695
Clegg's monograph deals with reactions induced by nucleons of energies larger than 100 MeV: elastic and inelastic scattering, knock-out o f nucleons and of clusters of a few nucleons. The method o f Coulomb excitation has been given a thorough and authoritative treatment by Biedenharn and Brussaard; it has taken such an extension that their book is twice as large as the other monographs o f the "Oxford Library" series. L.R.
J. H. SANDERS, The fundamental atomic constants, 2nd ed. (Oxford University Press, London, 1966. vi-98 p. 12s 6d.) The first edition was reviewed in this journal 26 (1961) 694. Since it appeared in 1961, two major reforms have been adopted by international agreement in the system of standards: the "physical" and "chemical" scales of atomic masses have been replaced by a single scale based on 12C = 12; the metallic standard of length has been replaced by an optical one. A new determination of the best values of the constants has been carried out in 1963. All these changes, as well as an account o f the latest relevant measurements, are incorporated in this new edition, which otherwise maintains the same disposition as the first. Frequencies should be given in hertz (symbol Hz) and not in cycles per second. L.R.
Organic coolants and moderators (IAEA, Vienna, 1965. 173 p, $ 4.) A fairly complete list of references and abstracts for the period from 1960 to 1964 with some older publications also included. After a short introduction abstracts are presented in chronological order. Then follows an author index, a list of abbreviations used for corporate authors and a subject index. Modern indexing technique has been used. This leads to such double Dutch as: IC LIQUIDS./ PROPERTIES COMPARISON HEAT-FLUX F O U L I N G / = + O R G A N 419. He who wants to understand this will be interested in abstract No. 419. O. Kofoed-Hansen
A. KITAIGORODSKY, Introduction to physics (Dover, New York, 1965. 719 p. $ 3)
R. W. CHRISTYand A. PYTTE, The structure o f matter (W. A. Benjamin, New York, 1965. xx-545 p
$ 11.85) Problems in undergraduate physics (4 volumes) S. P. STRELKOV and I. A. YAKOVLEV: VO1. 1, M e c h a n i c s S. P. STRELKOVet al.: vol. 2, Electricity and magnetism V. L. GINSBORG et al.: vo1. 3, Optics V. L. GINSBURG et al.: vol. 4, Molecular physics, thermodynamics, atomic and nuclear physics. (Pergamon, Oxford, 1965. vii-189 p.; vii-204 p.; vii-280 p.; vii-236 p.; 27s 6d per volume) Didactic works such as the above fall outside the scope of the journal, and can only be brought very briefly to the reader's attention. The first named is at the most elementary level, suited for beginners; the seond is more advanced, adapted to the level of 2nd year American students. The four Russian volumes of problems offer a wide and interesting choice. L.R.
A. NILS, Les radiodldments facteurs de progr~s dconomique (Dunod, Paris, 1966. xii-214 p. 32 F) The most original part of this book is a detailed statistical study of the industrial use of radioelements in Belgium, based on an enquiry conducted by the author. The report of this study is preceded by a compilation, of elementary character, o f the physical, industrial and economic background and followed by considerations, mostly confined to Belgium, of the economic prospects of the development of nuclear energy and the resulting use of radioelements. L.R.