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"This book contains everything the reader needs to know to facet gemstones expertly. Includes 22 beautiful cuts"--Amazon.com.
Amateur faceter Tom Herbst lays out the steps necessary to transform a shapeless lump of rock into a glittering jewel that is unique and valuable. Along the way, he explains not only the "how" but also the "why," and provides helpful tips in dealing with many of the pitfalls that confront the beginning gem cutter.
Rhizobia are bacteria which inhabit the roots of plants in the pea family and "fix" atmospheric nitrogen for plant growth. They are thus of enormous economic importance internationally and the subject of intense research interest. Handbook for Rhizobia is a monumental book of practical methods for working with these bacteria and their plant hosts. Topics include the general microbiological properties of rhizobia and their identification, their potential as symbionts, methods for inoculating rhizobia onto plants, and molecular genetics methods for Rhizobium in the laboratory. The book will be invaluable to Rhizobium scientists, soil microbiologists, field and laboratory researchers at agricultural research centers, agronomists, and crop scientists.
The most comprehensive overview available, this Handbook is an essential guide to sociolinguistics today. Reflecting the breadth of research in the field, it surveys a range of topics and approaches in the study of language variation and use in society. As well as linguistic perspectives, the handbook includes insights from anthropology, social psychology, the study of discourse and power, conversation analysis, theories of style and styling, language contact and applied sociolinguistics. Language practices seem to have reached new levels since the communications revolution of the late twentieth century. At the same time face-to-face communication is still the main force of language identity, even if social and peer networks of the traditional face-to-face nature are facing stiff competition of the Facebook-to-Facebook sort. The most authoritative guide to the state of the field, this handbook shows that sociolinguistics provides us with the best tools for understanding our unfolding evolution as social beings.
Learn how to master special shaped cabochon cutting, assembled stones, star stones, and cat's eyes. Special sections on opal and jade.
The Machinery's Handbook Pocket Companion is a concise yet authoritative, highly useful reference that draws its content from the Machinery's Handbook. Designed as a time saver, the Pocket Companion is an ideal quick resource for anyone in manufacturing, metalworking, and related fields for whom convenient access to just the most basic data is essential. Much of the information has been reorganized, distilled, or simplified to increase the usefulness of this book, while keeping it compact. The Pocket Companion is not intended to replace the new Machinery's Handbook, 31st Edition. Instead, it serves as a handy and more portable complement to the Handbook's vast collection of text, data, and standards. -- Back cover.