This is a comprehensive study of forest soils for foresters, wildlife and park managers, ecologists, and others interested in forest soils. It provides a valuable text for introductory and more advanced courses. The first ten chapters deal with basic soil information: texture, structure, and porosity; colour, temperature, and aeration; water; organic content; biological organisms and processes; chemistry; fertility; classification; and surveys. The last six chapters consider the components of the forest soil systems as related processes, discussing roots, fire, and water and nutrient cycles as they exist in natural forests and as they are modified by man. Professor Armson examines the process of forest soil development, and the place of soil as a part of a continuously changing landscape from both the historical and ecological viewpoints. An appendix describes the procedures for soil profile description and sampling. Full bibliographical references are supplied.

This is the newest book in our "Know Michigan" series. What are Charlevoix Stones? How do Charlevoix Stones differ from Petoskey Stones? How were they created? Where can they be found? Answers to these questions and more, PLUS full-color photos of other common fossils and stones of interest found along the beaches of Michigan's lakes.

Metamorphism generates electrical and magnetic phenomena, and is influenced by these forces. Information fundamental to their combined study is presented, including examples from microtectonics, crystal physics, geophysics, seismology, mineralogy and materials science. Applications for earthquake prediction, planetary science research, alternative energy and science education are included. Work on reported seismic electric signals is analyzed and summarized. Ten hypotheses related to earthquake mechanisms and prediction are presented, as well as eighteen recommendations for further study. Eight microtectonic deformation mechanisms are explored. Two hundred seventeen descriptions of minerals exhibiting ferroelectricity, pyroelectricity or piezoelectricity are presented, with quantitative data where known. Fifty-three of these are centrosymmetric, and explanations are given for their apparent violations of crystal theory. A comprehensive list of thirty-two mechanisms that generate telluric currents is also presented, as are some novel or inexpensive experimental techniques in crystal physics.

Large temperate rivers around the world have been historically affected by human activities and face an uncertain future in which water quality may be further threatened by climate change, urban development, agriculture, exotic species, recreation, and transportation uses (Meybeck and Helmer 1989; Zhang et al. 1999). In addition, large rivers can transfer water quality pollutants from land to sea, such as agricultural nitrogen in the Mississippi River causing hypoxia in the Gulf of Mexico (Burkart and James 1999).

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Journal And Proceedings Of The Royal Society Of New South Wales, Volume 30 Royal Society of New South Wales Australasian Medical Publishing Co., 1897 Science; Paleontology; Science; Science / Paleontology

Is the Arab world an indispensable energy source without which our civilisation will come to a halt? Is this the cause of political and military meddling in the Arab world's affairs, and the reason given by democratic western leaders to defend supporting autocratic and authoritarian Arab governments to stay in power? Is the world really this vulnerable? Assessment of mankind's dependence on fossil fuels, particularly the position of the Arab world, is performed by analysing the three types (oil, natural gas, and coal), which are in essence convertible. Fossil fuels are tackled from two angles: clarifying the terminology used by the media, politicians, scientists, and so-called experts, when discussing fossil fuels; evaluating the hard facts and separate them from fiction by analysing the numbers and scrutinise them impartially to come with a definitive quantitative answer. Finally, a further investigation examines fossil fuels in relation to alternative energy, and from political perspective.

2012 Reprint of 1931 Edition. Exact facsimile of the original edition, not reproduced with Optical Recognition Software. This is the first formal treatise on amateur lapidary work published in the United States. In the U.S. there was little activity in the field of lapidary until the 1930s, when European craftsmen emigrated to New York to serve the jewelry industry.

We think of them as ordinary objects, but rocks can do

amazing things: there are rocks that glow and rocks that

travel through space, rocks that float and rocks that burn.

These are only some of the surprises in Weird Rocks, a musthave

guide for young rock hounds. Author Michele Corriel

introduces readers to sixteen unusual rocks and explains

the science behind what each one does and how it does it.

Youngsters will discover what makes one kind of rock smell

like a rotten egg, what rock acts like a magnet, and what

rock contains hidden treasure. High-quality photographs,

colorful paintings, and hilarious cartoons add visual delight

to this entertaining and informative book.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Journal And Proceedings Of The Royal Society Of New South Wales, Volume 36 Royal Society of New South Wales Australasian Medical Publishing Co., 1902 Science; Paleontology; Science; Science / Paleontology

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. ++++ The below data was compiled from various identification fields in the bibliographic record of this title. This data is provided as an additional tool in helping to ensure edition identification: ++++ Journal And Proceedings Of The Royal Society Of New South Wales, Volume 40 Royal Society of New South Wales Australasian Medical Publishing Co., 1907 New South Wales; Science

The United States relies on imports for dozens of commodities in everyday use. Often enough, that reliance is 100%. This book provides awareness of the hidden geology and mineralogy behind common things, and develops an appreciation for the global resource distribution that underpins our society. While concerns about oil import reliance are in the news every day, our needs for other minerals are comparable, and are typically unknown even to technologically aware Americans.

This bibliography on the geographical, water and geological information ofSomalia was begun to fill a request for current information on that war tornstate. This bibliography brings together selected citations from a variety ofdifferent cartographic, geographical, geological and hydrological resourcesand a number of specialized library collections. Most of the citations havelocation information on where these items can be located and either used onsite, or borrowed through inter-library loan, or where copies of the itemscan be purchased from the originating source, or through commercial documentdelivery services.

Updated through 2006, this bibliography on the water and geological information of Liberia was begun in 1998 as a request through the US Department of State by the Government of Liberia. It brings together selected citations from a variety of different cartographic, geographical, geological and hydrological resources and specialized library collections. Most of the citations have location information on where these items can be located and used on site, and either borrowed through inter-library loan or purchased through a commercial document delivery services.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

A new edition of the clearest, most authoritative guide to rocks and minerals 600 incredible photos, precise annotations and detailed descriptions - from the distinguishing features of rocks to which crystal system a mineral belongs to - will help you identify different rocks and minerals quickly and easily. Covers everything from what rocks or minerals are, how they are classified to how to start a collection. Perfect for rocks and mineral lovers - a comprehensive guide for collectors.

Ancient civilizations used the finest stones to set into their idols, decorate their temples, and to adorn themselves. These people used all different sizes and colors of gemstones and these gemstones were set in sliver, gold and other minerals that they made metals. Gemstones made legends of both wealth and history in many parts of the world. Using richly colored gems in trading, inlaying them in jewelry, jeweled crowns, and garments were just a few ways that created that gleam and glitter when rays of light hit a stone. The play of colors giving the gemstones stunning effects. Leaders, kings, priests, medicine men, and others have put many different values on rocks and gemstones. A few of these values are monetary, symbols of great power, healing energies, spiritually and great wealth. In the world today rocks and gemstones are used as they were yet in ancient times and for many of these same reasons. Gemstones both semi-precious and precious are used some way or another by almost every age group, sex and personality. Each stone has a different energy and purpose. In some instances a thrill of excitement is felt by a person just looking at, using or owning a gemstone. Colorful and cut gemstones attract attention because of their beauty and ability to move energy levels and states of mind according to their vibration levels. This statement is also true for all of the uncut stones in the mineral kingdom.

This title explores how mountains have risen only to dwindle to dust. Readers discover how igneous, sedimentary, and metamorphic rocks live, die and are reborn as part of the never-ending rock cycle.

This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.