BOOK REVIEWS
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symposia volumes, such as the very useful index maps to the individual papers at the beginning of the volumes, and the consolidated author and subject indexes at the end. Overall the editors are to be congratulated on producing an outstanding volume. In conclusion, this two-volume set contains many individually excellent papers, some of which present new and interesting ideas on the geology of this large and important area, as well as on many of the more recently discovered a n d / o r developed deposits in the area. As many of the papers were prepared by, or co-authored with, industrial geologists involved in the discovery, subsequent development or operation of the mines, they do not suffer the typical academic problem of over-publication and duplication caused by the publishor-perish syndrome, and are probably the only major descriptions which will ever appear of these individual deposits. As many of these papers, especially the major deposit descriptions highlighted above, are both excellent and very comprehensive, this volume becomes one of the "must haves" in any reasonable collection of economic geology texts, to stand alongside such greats as the Economic Geology 75th Anniversary Volume, the AIME Ore Deposits in the Umted States (the Graton-Sales volume ), and the recently issued Australasian Institute of Mining and Metallurgy Geology and Mineral Depostts of
Australia and Papua New Gumea. T.J. Bottrill Toronto, Ont.
The following books have been received and may be of interest to readers, but do not seem feasable for detailed review, so they are listed with only brief review.
Biomarkersfor Geologists D.W. Waples and T. Machihara. AAPG Methods in Exploration Series, No. 9. Amer. Assoc. Petroleum Geologists, Tulsa, OK, 1991, 91 pp. Applications of steranes and triterpanes as geochemical biomarkers are described in this practical guide for petroleum explorationists. Chapters cover basic nomenclature, origin of steranes and triterpanes, analytical procedures, use as indicators for maturity, organic facies, biodegradation and correlation.