340
BOOK REVIEWS
requirement well. The remaining five articles are all more specialised in nature. Jagodzinski’s article provides a detailed account of what may be deduced about defects in the spine1 structure fromX-ray diffraction measurements. Chapters4 and 5, although interesting, deal with such restricted topics that they resemble conventional research papers more than review articles. Dr. Reijnen’s account of the sintering of oxides (Chapter 6) is an attempt to explain observed behaviour in terms of a theoretical model he proposes for the movement of defects through oxides. This is a valuable contribution to an important subject. Finally, Professor Greenwood, well known for his work on Mijssbauer Spectroscopy, discusses the relevance of this technique to the study of non-stoichiometry in solids, notably iron compounds. In summary, this book contains much that is of interest and value although overall it has the status of a “botch-patch”. Aside from the more serious failing of the lack of coordination of the articles, publishers should ensure that articles which are printed in English should conform to conventional English usage ; oddities of expression crop up repeatedly in several of the articles. R.M. DELL J. Less-Common Metals, 24 (1971) 339-340
ERRATA
G. Pannetier et al., J. Less-Common Metals, 24 (1971) 83-92
On page 92, a wrong line has been substituted for the 6th line from the end. The correct line reads : pour le depot d’iridium en phase vapeur (application deja connue pour le derive. The sentence involved by this correction, thus, reads : “11speuvent &tre sublimes ce qui permet d’envisager leur utilisation pour le depot d’iridium en phase vapeur (application deja connue pour le derive mtthoxy).” G. P. Adams et al., J. Less-Common Metals, 24 (1971) 113-116
On page 115, the minus sign in the equation for AH&,, (335, GeF,, c) is incorrect. In addition, the value for the enthalpies associated with the transition of S(rhom)+S(monoclinic)-given two lines below the equation-should read : 0.096 kcal mol - ‘. J. Less-Common Metals, 24 (1971) 339-340