Bear Robert M (15 results)

Condition: Very Good. 1780499066. 6/3/2026 3:04:26 PM.

Condition: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Trade Paperback. Condition: VG. used trade paperback edition. lightly shelfworn, corners perhaps slightly bumped. pages and binding are clean, straight and tight. there are no marks to the text or other serious flaws.

Trade Paperback. Condition: Fine. Paperback with cover art by Vladislav Ociacia, 406 pp. Excellent condition.

paperback. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!

hardcover, Condition: fair, Macmillan, NY, 1937, 8vo., cloth, 434pp., ex-lib.- spine label, pocket, stamps, frayed spine caps & scuffed edges, fair, $.

Hard Cover. Condition: Good. No Jacket. Cover lightly worn. Pages clean with no markings, binding sound. Size: 8vo - over 7¾" - 9¾" tall. Ex-Libris.

Pamphlet. Condition: Collectible. Copyright 1957. ATPI (American Textbook Publishers Institute, New York). (12) pages. Drawings. 9 x 6", printed wrapper. VG.

Paperback. Condition: New. Print on Demand. This book provides a detailed look at basic methods used in soil analysis. It was initially written to assemble the techniques used and developed in the soil laboratory of the West Virginia Agricultural Experiment Station. The methods are presented in sufficient detail to permit their employment by those who have not had extensive experience in quantitative work. The book covers determining iron, aluminum, titanium, manganese, calcium, magnesium, potassium, phosphorus, total nitrogen, total carbon, total sulfur, silica, carbonate carbon, lime requirement, nitrate nitrogen, and ammonium nitrogen. The author emphasizes eliminating difficulties encountered when determining silica in the same sample as the other elements, which has proven particularly advantageous in the West Virginia Experiment Station laboratory. The methods outlined depend on the decomposition of the sample by means of hydrofluoric acid and are open to possible objections. However, the subsequent procedure permits appropriate corrections. This book will be of value to those interested in developing and refining soil analysis techniques. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Paperback. Condition: New. Print on Demand. This book examines the long-term impact of fertilizers on soil composition, crop yield, and the effectiveness of various treatments over 15 years. The author analyzed soil samples from a series of test plots that had received different combinations of fertilizers, including nitrogen, phosphorus, potassium, and lime, and compared them to untreated control plots. The results demonstrate that nitrogen fixation occurred in plots treated with acid phosphate and/or sulfate of potash, with rates varying from 20 to 78 pounds per acre per year. Notably, phosphorus applied to the soil remained fixed in the top 6 3/4 inches, indicating that it was not lost through drainage. Furthermore, the use of fertilizers, particularly complete fertilizers and manure, led to increased organic matter content and decreased soil acidity. In contrast, excessive lime application was found to deplete nitrogen, phosphorus, and organic matter. These findings suggest that judicious fertilizer use can enhance soil health, promote crop growth, and potentially reduce the need for lime in acidic soils. This book offers valuable insights for farmers, soil scientists, and anyone interested in sustainable agricultural practices and soil management strategies. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item.

Condition: New.

Condition: As New. Unread book in perfect condition.

Condition: New.

Condition: As New. Unread book in perfect condition.

First edition, first printing. Limited edition. Signed by the author. Publisher's original black faux leather boards with titles in copper to the spine, in the Bob Eggleton illustrated dustwrapper. Illustrated throughout with 13 full page black and white plates by Bob Eggleton. Housed in the navy cloth slipcase. A fine copy, the binding square and firm, the contents are clean throughout and free from inscriptions or stamps. With the fine original dustwrapper, which is free from fading, loss or tears. Not price-clipped ($40 to the front flap). Complete with the fine structurally sound slipcase. Issued in an edition of 250 copies, from which this example is numbered 42 and signed by the editors Greg Bear and Gardner Dozois and all 16 of the contributing authors on the limitation pages. A collection of 17 original novellas, short stories and reminiscences, inspired by and in tribute to Poul Anderson (1926-2001). Further details and images for any of the items listed are available on request. Lucius Books welcomes direct contact with our customers. Signed by Author(s).