- Email: [email protected]
Glossary of mining geology
78 lar matter. Thus the basic conclusion of the b o o k that the light elements were produced locally, is no longer valid. However, even in the current theory, spallation is still important, though n o w w i t h regard to cosmic rays rather than early solar flares. Thus, the discussion of the physics of spallation is still relevant to the problem. David N. Schramm, Pasadena, Calif.
which followed individual presentation accompany each paper. Altogether, the volume under review represents a very useful addition to the c o n t e m p o r a r y astronomical literature and should not be missing in any professional library. The editor should be congratulated on a job t r u l y well done b o t h at the time of the conference as well as in preparing the diverse material for the press; and the Reidel Publishing C o m p a n y produced another very attractive volume w i t h the expertise which the astronomical public has long been accustomed to expect f r o m them.
A X I A L R O T A T I O N OF THE STARS Zdenek Kopal, Manchester A. Slettebak (Editor), 1970. Stellar Rotation. Reidel, Dordrecht, 355 pp., Dfl. 70.00. As is well k n o w n , the rotational momentum of a star represents one of the three fundamental attributes of stellar configurations which, together w i t h their mass and chemical composition, determine the w h o l e march of evolution f r o m cradle to grave. The masses and compositions of the stars at d i f f e r e n t stages of their evolution have been the subject of extensive literature in their o w n right; and the respective data are readily available to the interested reader in concise b o o k form. This has, however, n o t been the case w i t h our knowledge of the axial rotation of the stars, a summarizing treatment of which has so far been sadly lacking. It is, therefore, w i t h genuine pleasure that we can welcome the appearance of the present volume, which usefully fills a noticeable gap in the c o n t e m p o r a r y astronimical literature. The contents of the volume under review has been divided in f o u r parts. The first and second -- concerned w i t h the effects of rotation on the internal structure of the stars and their atmospheres -- are mainly theoretical. Part 3, devoted to a survey of our present knowledge of stellar rotation in binarics and clusters, is largely empirical, and concerned w i t h a discussion of the meaning of facts disclosed by the observations. For a more general reader this part constitutes probably the highlight of the entire volume; for its last part ( " T h e Rotation of the S u n " ) is concerned again w i t h problems (both theoretical and observa* tional) of more specialized nature. Each of these three parts consist of individual c o n t r i b u t i o n s b y a number of investigators currently w o r k i n g in this field, and is introduced b y a review paper of its field. A brief version of the discussions
MULTI-LINGUAL
GLOSSARY
A m s t u t z , 1971. Glossary of Mining Elsevier, Amsterdam, 196 pp., Dfl. 48.00.
G.C.
Geology.
The Glossary of Mining Geology fills a definite need in a field which abounds w i t h foreign language papers and reports. The handy little b o o k contains about 200 entries of terms, expressions and concepts used in mining geology. Each e n t r y is in English, Spanish, French and German. The English heading of each e n t r y is in larger type, and the arrangement of entries is in alphabetical order of the English headings. Each language has its o w n alphabetical index at the end of the book. Professor A m s t u t z has been very careful w i t h genetic connotations, and annotations are largely free f r o m unnecessary or misleading assumptions. Some entries are exceptionally detailed (e.g., Ore Reserve Classification and Mining Methods). M a n y wellchosen, clear illustrations considerably add to the value of the book. Ten appendices provide much useful basic i n f o r m a t i o n (e.g., several classifications of elements, map symbols in f o u r languages, classifications of ore deposits, geochemical cycles, and others). In an i n t r o d u c t i o n , the author points to the d i f f i c u l t y of finding exact equivalents for terms in each of the languages, and adds an interesting q u o t a t i o n f r o m Ortega y Gasset on the subject. In the Glossary, this d i f f i c u l t y is dealt w i t h in the annotations. A number of improvements might be recommended for a second edition. First, a more complete bibliography is needecl. Abbreviations and conventions should, be listed at the beginning. N o t all structural
79 terms are up to date. Appendix 3, the Geological Time Scale, is based on AGI Data Sheet 5 which is now out of date. In Appendix 7, a listing of representative cut-off grades would be a useful addition. But these are minor criticisms, inevitable in a compila-
tion such as this. The glossary is certainly a well conceived and very useful work, to be recommended to all mining and economic geologists. J.G. Dennis, Long Beach, Calif.
which followed individual presentation accompany each paper. Altogether, the volume under review represents a very useful addition to the c o n t e m p o r a r y astronomical literature and should not be missing in any professional library. The editor should be congratulated on a job t r u l y well done b o t h at the time of the conference as well as in preparing the diverse material for the press; and the Reidel Publishing C o m p a n y produced another very attractive volume w i t h the expertise which the astronomical public has long been accustomed to expect f r o m them.
A X I A L R O T A T I O N OF THE STARS Zdenek Kopal, Manchester A. Slettebak (Editor), 1970. Stellar Rotation. Reidel, Dordrecht, 355 pp., Dfl. 70.00. As is well k n o w n , the rotational momentum of a star represents one of the three fundamental attributes of stellar configurations which, together w i t h their mass and chemical composition, determine the w h o l e march of evolution f r o m cradle to grave. The masses and compositions of the stars at d i f f e r e n t stages of their evolution have been the subject of extensive literature in their o w n right; and the respective data are readily available to the interested reader in concise b o o k form. This has, however, n o t been the case w i t h our knowledge of the axial rotation of the stars, a summarizing treatment of which has so far been sadly lacking. It is, therefore, w i t h genuine pleasure that we can welcome the appearance of the present volume, which usefully fills a noticeable gap in the c o n t e m p o r a r y astronimical literature. The contents of the volume under review has been divided in f o u r parts. The first and second -- concerned w i t h the effects of rotation on the internal structure of the stars and their atmospheres -- are mainly theoretical. Part 3, devoted to a survey of our present knowledge of stellar rotation in binarics and clusters, is largely empirical, and concerned w i t h a discussion of the meaning of facts disclosed by the observations. For a more general reader this part constitutes probably the highlight of the entire volume; for its last part ( " T h e Rotation of the S u n " ) is concerned again w i t h problems (both theoretical and observa* tional) of more specialized nature. Each of these three parts consist of individual c o n t r i b u t i o n s b y a number of investigators currently w o r k i n g in this field, and is introduced b y a review paper of its field. A brief version of the discussions
MULTI-LINGUAL
GLOSSARY
A m s t u t z , 1971. Glossary of Mining Elsevier, Amsterdam, 196 pp., Dfl. 48.00.
G.C.
Geology.
The Glossary of Mining Geology fills a definite need in a field which abounds w i t h foreign language papers and reports. The handy little b o o k contains about 200 entries of terms, expressions and concepts used in mining geology. Each e n t r y is in English, Spanish, French and German. The English heading of each e n t r y is in larger type, and the arrangement of entries is in alphabetical order of the English headings. Each language has its o w n alphabetical index at the end of the book. Professor A m s t u t z has been very careful w i t h genetic connotations, and annotations are largely free f r o m unnecessary or misleading assumptions. Some entries are exceptionally detailed (e.g., Ore Reserve Classification and Mining Methods). M a n y wellchosen, clear illustrations considerably add to the value of the book. Ten appendices provide much useful basic i n f o r m a t i o n (e.g., several classifications of elements, map symbols in f o u r languages, classifications of ore deposits, geochemical cycles, and others). In an i n t r o d u c t i o n , the author points to the d i f f i c u l t y of finding exact equivalents for terms in each of the languages, and adds an interesting q u o t a t i o n f r o m Ortega y Gasset on the subject. In the Glossary, this d i f f i c u l t y is dealt w i t h in the annotations. A number of improvements might be recommended for a second edition. First, a more complete bibliography is needecl. Abbreviations and conventions should, be listed at the beginning. N o t all structural
79 terms are up to date. Appendix 3, the Geological Time Scale, is based on AGI Data Sheet 5 which is now out of date. In Appendix 7, a listing of representative cut-off grades would be a useful addition. But these are minor criticisms, inevitable in a compila-
tion such as this. The glossary is certainly a well conceived and very useful work, to be recommended to all mining and economic geologists. J.G. Dennis, Long Beach, Calif.