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A Guide to Common Plants of Lake Mead National Recreation...

Powell, Elizabeth A. / Landau, Frederick H. / Walker, Lawrence R.
A Guide to Common Plants of Lake Mead National Recreation Area
A Guide to Common Plants of Lake Mead National Recreation Area is the definitive book for weekend explorers and botanists alike who venture into LMNRA ready to discover the many wonders of the local flora. The authors highlight 183 plants that hikers are most likely to encounter along popular trails, washes, and surrounding hot springs, helping the area's millions of annual visitors identify and enjoy these common plants. This guide includes p...

CHF 31.50

Scout Manchester

Powell, A G
Scout Manchester
Three-legged Scout Manchester is England's most renowned ghost hunting dog-and she knows it.But the phantoms at play in Chillblains Castle are far more darkly powerful than anything Scout has ever before encountered. Forced to rely on another canine for the first time in her illustrious career, Scout and her unlikely partner must work together to defeat the evil entities that have lain in wait for centuries in the dark recesses of Chillblains ...

CHF 14.50

A Study of the Forms in Which Sulphur Occurs in Coal (Cla...

Powell, A. R.
A Study of the Forms in Which Sulphur Occurs in Coal (Classic Reprint)
Excerpt from A Study of the Forms in Which Sulphur Occurs in CoalThere are many indications that organic sulphur compounds form a large part of the sulphur in coal, but the nature of these compounds or the amount of sulphur SO combined has never been determined prior to this investigation. Since the organic sulphur had its source in the protein sulphur of the plant and animal life from which the coal was formed, it is probable that these compo...

CHF 52.50

A Selected and Annotated Bibliography on Gas Purification...

Powell, A. R.
A Selected and Annotated Bibliography on Gas Purification (Classic Reprint)
Excerpt from A Selected and Annotated Bibliography on Gas PurificationPhysical Organic Chemist, Bureau of Mines, Pittsburgh, Pa. Research Reference Librarian, Bureau of Mines, Pittsburgh, Pa.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reco...

CHF 39.90

A Study of the Forms in Which Sulphur Occurs in Coal, Vol...

Powell, A. R.
A Study of the Forms in Which Sulphur Occurs in Coal, Vol. 111 (Classic Reprint)
Excerpt from A Study of the Forms in Which Sulphur Occurs in Coal, Vol. 111For some time sulphur in coal has been known to be combined with iron as iron pyrites and marcasite, both of which have the formula fesz. Very small quantities of sulphates also are found, but the amount is so small, especially in freshly mined coal, that it is almost negligible. Free sulphur has been suspected to be present in coal, but its presence is the exception ra...

CHF 41.50

A Study of the Forms in Which Sulphur Occurs in Coal (Cla...

Powell, A. R.
A Study of the Forms in Which Sulphur Occurs in Coal (Classic Reprint)
Excerpt from A Study of the Forms in Which Sulphur Occurs in CoalFor some time sulphur in coal has been known to be combined with iron as iron pyrites and marcasite, both of which have the formula Fesa. Very small quantities of sulphates also are found, but the amount is so small, especially in freshly mined coal, that it is almost negligible. Free sulphur has been suspected to be present in coal, but its presence is the exception rather than ...

CHF 70.00

A Study of the Forms in Which Sulphur Occurs in Coal (Cla...

Powell, A. R.
A Study of the Forms in Which Sulphur Occurs in Coal (Classic Reprint)
Excerpt from A Study of the Forms in Which Sulphur Occurs in CoalFor some time sulphur in coal has been known to be combined with iron as iron pyrites and marcasite, both of which have the formula Fesa. Very small quantities of sulphates also are found, but the amount is so small, especially in freshly mined coal, that it is almost negligible. Free sulphur has been suspected to be present in coal, but its presence is the exception rather than ...

CHF 43.90

A Study of the Forms in Which Sulphur Occurs in Coal (Cla...

Powell, A. R.
A Study of the Forms in Which Sulphur Occurs in Coal (Classic Reprint)
Excerpt from A Study of the Forms in Which Sulphur Occurs in CoalThere are many indications that organic sulphur compounds form a large part of the sulphur in coal, but the nature of these compounds or the amount of sulphur SO combined has never been determined prior to this investigation. Since the organic sulphur had its source in the protein sulphur of the plant and animal life from which the coal was formed, it is probable that these compo...

CHF 29.90

Ecology and Behaviour of North American Black Bears

Powell, R. A. / Powell, C. / Erran Seaman, D. / Zimmerman, J. W.
Ecology and Behaviour of North American Black Bears
What main factors affect mammalian home-range and dynamics? To what extent do constraints on home range characteristics vary between the sexes? This book aims to address these issues by concentrating the authors' expertise and experience in studies of home ranges in general and focusing on their studies of the black bears of the Pisgah Forest, North Carolina, in particular. The authors provide an overview of black bears and methods for their s...

CHF 355.00

A Study of the Forms in Which Sulphur Occurs in Coal, Vol...

Powell, A. R.
A Study of the Forms in Which Sulphur Occurs in Coal, Vol. 111 (Classic Reprint)
Excerpt from A Study of the Forms in Which Sulphur Occurs in Coal, Vol. 111 The Engineering Experiment Station was established by act of the Board of Trustees, December 8, 1903.It is the purpose of the Station to carry on investigations along various lines of engineering and to study problems of importance to professional engineers and to the manufacturing, railway, mining, constructional, and industrial interests of the State. The control o...

CHF 15.50

Ecology and Behaviour of North American Black Bears: Home...

Powell, Roger A. / Powell, R. a. / Zimmerman, J. W.
Ecology and Behaviour of North American Black Bears: Home Ranges, Habitat and Social Organization
What main factors affect mamalian home-range size and dynamics? To what extent do constraints on home range characteristics vary between the sexes? This book aims to address these issues by concentrating the authors' expertise and experience in studies of home ranges in general and focussing on their studies of the black bears of the Pisgah Forest, North Carolina, in particular. The authors provide an overveiw of the black bears and methods fo...

CHF 119.00