Download or read book Rubber Content of North American Plants Classic Reprint written by Harvey Monroe Hall and published by Forgotten Books. This book was released on 2016-09-14 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Rubber-Content of North American Plants Apparently the most extensive examination of the milkweeds hitherto made was that of Fox who carried on his experiments at Akron, Ohio. This worker obtained 2 to 3 per cent of rubber from Asclepias syr'iaca on the basis of the latex. His conclusions were that while rubber is a product of the plant, the amount is so small, its quality is so inferior, and its cost of production is so high, that a profitable industry is out of the question. A year later Fox (1912) reported more favorably concerning his work on Apocynum cannabinum or Indian hemp. The latex of this Species was found to contain only to per cent of rubber, but the quality of the product was much superior to that obtained from Asclepias. Other characters of the rubber are given on p. 55) It is to the credit of this investigator that he carried his examination so far, although working with plants which gave such discouragingly low yields. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book The United States Catalog written by Mary Burnham and published by . This book was released on 1928 with total page 1612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Classic Botanical Reprints 201 213 written by and published by . This book was released on 199? with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Classic Botanical Reprints written by American Botanical Council and published by . This book was released on 199? with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Author title Catalog written by University of California, Berkeley. Library and published by . This book was released on 1963 with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The United States Catalog written by Mary Burnham and published by . This book was released on 1928 with total page 1656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rubber content of North American Plants written by Harvey Monroe Hall and published by . This book was released on 1921 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to Reprints written by and published by . This book was released on 2000 with total page 1044 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Books in Print written by and published by . This book was released on 1991 with total page 1756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Books in Series written by and published by . This book was released on 1979 with total page 3328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Reprints written by Edward Murray East and published by . This book was released on 1907 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rubber content of North American Plants written by Harvey Monroe Hall and published by . This book was released on 1921 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Books in Series 1876 1949 Authors written by and published by . This book was released on 1982 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Importing Into the United States written by U. S. Customs and Border Protection and published by . This book was released on 2015-10-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explains process of importing goods into the U.S., including informed compliance, invoices, duty assessments, classification and value, marking requirements, etc.
Download or read book A Rubber Plant Survey of Western North America Classic Reprint written by Harvey Monroe Hall and published by Forgotten Books. This book was released on 2017-11-25 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A Rubber Plant Survey of Western North America In the course of an investigation of Chrysotham nus as a possible source of rubber, it has been found necessary to give considerable attention to the botanical relationships of the species and varieties of this genus of shrubs. Even before that investigation was begun in 1917, the author had undertaken a revision of the group and although the preparation of this has been delayed by the rubber studies it is intended now to carry it forward to completion. In the meantime, however, it is necessary that the forms discussed in the rubber report be properly defined and that those not hitherto recognized be named and described. These are the reasons for the publication of this preliminary paper. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book Caterpillars of Eastern North America written by David Wagner and published by Princeton University Press. This book was released on 2010-04-25 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This lavishly illustrated guide will enable you to identify the caterpillars of nearly 700 butterflies and moths found east of the Mississippi. The more than 1,200 color photographs and two dozen line drawings include numerous exceptionally striking images. The giant silk moths, tiger moths, and many other species covered include forest pests, common garden guests, economically important species, and of course, the Mescal Worm and Mexican Jumping Bean caterpillars. Full-page species accounts cover almost 400 species, with up to six images per species including an image of the adult plus succinct text with information on distribution, seasonal activity, foodplants, and life history. These accounts are generously complemented with additional images of earlier instars, closely related species, noteworthy behaviors, and other intriguing aspects of caterpillar biology. Many caterpillars are illustrated here for the first time. Dozens of new foodplant records are presented and erroneous records are corrected. The book provides considerable information on the distribution, biology, and taxonomy of caterpillars beyond that available in other popular works on Eastern butterflies and moths. The introductory chapter covers caterpillar structure, life cycles, rearing, natural enemies, photography, and conservation. The section titled "Caterpillar Projects" will be of special interest to educators. Given the dearth of accessible guides on the identification and natural history of caterpillars, Caterpillars of Eastern North America is a must for entomologists and museum curators, forest managers, conservation biologists and others who seek a compact, easy-to-use guide to the caterpillars of this vast region. A compact guide to nearly 700 caterpillars east of the Mississippi, from forest pests to garden guests and economically important species 1,200 color photos and 24 line drawings enable easy identification Full-page species accounts with image of adult insect for almost 400 species, plus succinct text on distribution and other vital information Many caterpillars illustrated here for the first time Current information on distribution, biology, and taxonomy not found in other popular works A section geared toward educators, "Caterpillar Projects" An indispensable resource for all who seek an easy-to-use guide to the caterpillars of this vast region
Download or read book Middleton s Allergy 2 Volume Set written by A Wesley Burks, MD and published by Elsevier Health Sciences. This book was released on 2013-10-18 with total page 1900 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boasting a worldwide reputation as the leading text in allergy and immunology, Middleton's Allergy continues its steadfast tradition of providing comprehensive coverage of state-of-the-art basic science, as well as authoritative guidance on the clinical concepts of day-to-day diagnosis and management of allergic disorders. Offering timely information that’s suited for clinicians and researchers alike, Middleton’s is a user-friendly and versatile source for the knowledge you need to provide optimal care to your patients! "A valuable source of reference and pre-sifted information ...the editors are to be commending in keeping the book up-to-date and clinically valuable." Reviewed by: Imnunology News, March 2015 Stay on top of continuous new developments in clinical allergy and immunology through online access to the Expert Consult site, which will feature regular updates as well as the fully searchable contents. Find all of the information you need quickly and easily with a glossary of allergy and immunology terms; highlighted key points for each chapter; hundreds of crystal-clear images with a full-color format, and access to relevant websites. Apply the latest scientific knowledge and clinical applications with new chapters on Innate and Adaptive Immunity, Immune Tolerance, Immunobiology of IgE and Its Receptors, Resolution of Allergic Inflammation, and Particulate and Allergen Interactions, plus sweeping updates throughout. Take full advantage of the major advances in asthma pathogenesis and management with significant updates on diagnosis, treatment, and special aspects of asthma. Obtain the best results from the newest therapeutics for allergic and immunologic diseases through an expanded discussion of immunotherapy that includes new chapters on Sublingual Immunotherapy, Biologics and Immunosuppressives in Asthma, and Alternative and Complementary Therapies.
