A Guide to the Identification of the More Useful Timbers of Nigeria (Classic Reprint)
| Preis: | 13.95 EUR* (inkl. MWST zzgl. Versand - Preis kann jetzt höher sein!) |
| Versand: | 0.00 EUR Versandkostenfrei innerhalb von Deutschland |
| Partner: | buecher.de |
| Hersteller: | Forgotten Books (Stone, Herbert) |
| Stand: | 2015-08-04 03:50:33 |
Produktbeschreibung
Excerpt from A Guide to the Identification of the More Useful Timbers of Nigeria This brochure is the fist of a series which will, it is hoped, extend to the whole of the more useful woods of Africa. At present, however, we confine ourselves to those species only which have been sent to us by the Government of Nigeria for the purpose. Many of the woods are very widely distributed, in some cases ranging from Senegal to the Sudan and from the Cape to the East African Protectorate, hence our descriptions may be found useful by those interested in the timbers of the adjacent regions. Our method of identification is based upon the examination of the solid wood by means readily applicable to all, after preparation (smoothing) with glass-paper, pumice-stone, the sharp edge of broken glass, by the plane, or even by the use of a hone. Each wood may demand a different method to bring it into a condition in which the structure will be clearly visible. Hence in comparing our descriptions it will be necessary to treat the wood in the same way as stated in the schedules in connection with each species under the paragraph "transverse section." The various tissues are thrown into relief by different processes, for example, the wood-parenchyma, or soft-tissue, is made visible by the use of glass-paper, whereas it is frequently obscured by the use of a plane. A corner of the wood cleanly cut with a razor will serve as a control. The means of magnification are: a hand-lens affording about three diameters, and a hand-microscope (which we shall refer to as a "macroscope") giving about ten diameters. Our figures are all enlarged by three diameters, to accord with the image obtained by the hand-lens. 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.
* Preis kann jetzt höher sein. Den aktuellen Stand und Informationen zu den Versandkosten finden sie auf der Homepage unseres Partners.
Folgende Produkte könnten dir ebenso gefallen
