howes f n (43 Ergebnisse)

Paperback. Zustand: Good. The book has been read but remains in clean condition. All pages are intact and the cover is intact. Some minor wear to the spine.

Zustand: Good. Light wear to boards. Content is clean with slight toning. Good DJ with light toning and little wear.

Zustand: Good. Ships from the UK. Former library book; may include library markings. Used book that is in clean, average condition without any missing pages.

Zustand: Good. Most items will be dispatched the same or the next working day. A copy that has been read but remains in clean condition. All of the pages are intact and the cover is intact and the spine may show signs of wear. The book may have minor markings which are not specifically mentioned.

Zustand: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. Clean from markings. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,600grams, ISBN:0521085209.

Zustand: New.

Hardcover. Zustand: Very Good. Zustand des Schutzumschlags: Very Good. 1st Edition. 290pp hardback, very good in a very good wrapper with clear removable, protective plastic cover.

Zustand: Good. 1979. 1979 Reprint. 236 pages. Black paperback book with pictorial cover. Pages are lightly tanned and thumbed at the edges, with light foxing. Binding has remained firm. Paper cover is lightly rub worn and thumbed with light shelf wear to edges and corners. Light creases to corners and spine. Light tanning to spine and edges.

Hardcover. Zustand: Good. 3rd impression. Light wear to boards with scuffing. Content is clean with even toning and a sticker on the front pastedown. No DJ.

Zustand: Very Good. x, 290, . . HB. Vg in d/w. The botanist Peter Yeo's signature to endpaper. 1975 reprint. [9780521085205].

Hardbound. Zustand: As New. New. Contents Preface. Introduction. I. Gums 1. The nature and uses of gums. 2. Gum Arabic and other Acacia gums. 3. Gum Tragacanth and similar gums. 4. Some well known or much used Asiatic gums. 5. Gums of the new world. 6. Miscellaneous and little known gums. II. Resins 7. Properties and uses of resins. 8. The Copals. 9. Rosin or Colophony. 10. Dammars. 11. Kauri Resin. 12. Lac Resin and Shellac. 13. Some little used varnish Resins. 14. Elemi. 15. Natural Lacquers. 16. Frankincense and Myrrh. 17. Medicinal and other Resins. Bibliography. Index of Botanical names (with authorities). Index of common names and authors. The vegetable gums and resins constitute an important group of economic plant products and are utilized in many ways. Their uses by man in fact go back to the earliest times. In modern industry large quantities of both resins and gums have been used for many years in manufacturing processes of various kinds. Their uses continue to increase. The terms gums and resin are often used in a somewhat indefinite or vague manner. They have been applied to almost any form of plant exudation even to those that are of a predominantly rubbery nature. The wild or jungle rubber industry that thrived in the past in many parts of the world and was revived during the Second World War was often referred to as the gum industry and those engaged in it as gum collectors. Chicle gum and Balata gum are expression frequently heard at the present time. In addition to its use in connection with rubbery exudations of this kind the word gum is also applied to some of the true resins as in gum copal gum accroides kauri gum and varnish gums where the resins employed in varnish making are intended. A simple if incomplete distinction between gum and resins is that the true gums are more or less soluble in water of swell to a jelly like mass but remain insoluble in organic solvents whereas the resins are unaffected by water but are more or less soluble in various organic solvents. Some plant exudations consist in the natural state of a mixture of both gum and resin and are styled gum resins. The term oleo resin is used for those resins of more or less soft consistency that occur mixed with a relatively large amount of essential oil. Some resinous plant executions particularly those that are medicinal consist of mixtures of resin gum and oil and may be termed oleo gum resins. The number of species that yield gums or resins in greater or less amount throughout the vegetable kingdom must be many thousands. For this reason a selective treatment has been necessary in this work. Special emphasis is placed on those gums and resins that are of commercial importance or which for some reason or other are of special interest. Particular attention has been given to those that have only become of commercial importance in comparatively recent years and which are not dealt with in older works of reference. Examples of these are Carob seed or locust gum Karaya or Sterculia gum and other Tragacanth substitutes also certain Acacias now known to be exploited for gum particularly in East Africa. With regard to modern uses of vegetable resins the paint varnish linoleum paper sizing and soap making trades use consideration quantities. The relative amounts of the different kinds of resins used for industrial purposes. At one time it was thought synthetic resins would completely replace natural resins for many purposes particularly in the paint and varnish industries but this has not materialized and the natural resins continue to hold their own and to be imported into manufacturing countries in large quantities. What the future will hold no one can foretell but in the light of recent development there are strong indications that the use of natural resins will increase rather than diminish. Recently research has developed new types of resin which are combinations of synthetic and of natural resins the best examples being the so called copal type synthetics. These resins are.

Hard covers, dust jacket. Zustand: Fine. Zustand des Schutzumschlags: Fine. 1st edition. Scarcely used. Weight: 1.0 Language: English.

Hardcover. Zustand: Very Good. Zustand des Schutzumschlags: Very Good. 2nd Edition. 236pp hardback, black boards gilt in wrapper, pages toned, very good in a very good wrapper.

Zustand: New. In.

Hardcover. Zustand: Good. 1st Edition. Not a common title. This copy is in green cloth, no dust jacket, a bit faded but clean inside. 224 pages, illustrations.

Zustand: Gut. Reprinted with corr. 22,5 cm. (4) Bl., 290 S. Original Pappband (Hardcover) Gutes Exempla. Einbanddeckel mit einem Fleck, Rücken leicht geblichen. Name im Vorsatz. Based on material contained in J. C. Willis: A dictionary of the flowering plants and ferns (6th ed., 1931).

Paperback. Zustand: Very Good. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.

Zustand: Fair. Acceptable condition. No Dust Jacket Former Library book. (gums and resins, botany, economic, resins, plant ) A readable, intact copy that may have noticeable tears and wear to the spine. All pages of text are present, but they may include extensive notes and highlighting or be heavily stained. Includes reading copy only books.

Zustand: Fair. Acceptable condition. Former Library book. (botany, economic, resisns, plant, gums and resins ) A readable, intact copy that may have noticeable tears and wear to the spine. All pages of text are present, but they may include extensive notes and highlighting or be heavily stained. Includes reading copy only books.

Hardcover. Zustand: As New. Contents: Preface. Introduction. I. Gums: 1. The nature and uses of gums. 2. Gum Arabic and other Acacia gums. 3. Gum Tragacanth and similar gums. 4. Some well known or much used Asiatic gums. 5. Gums of the new world. 6. Miscellaneous and little known gums. II. Resins: 7. Properties and uses of resins. 8. The Copals. 9. Rosin or Colophony. 10. Dammars. 11. Kauri resin.12. Lac resin and Shellac. 13. Some little used varnish resins. 14. Elemi. 15. Natural Lacquers. 16. Frankincense and myrrh. 17. Medicinal and other resins. Bibliography. Index of Botanical names. Index of common names and authors.No. 21120 190 pp.

Hardcover. Dust Jacket Included. pp.290. 8vo. A vg. plus hdbk. in vg. dw., shelf rubbed along edges.

Hardcover. Zustand: Very Good. Zustand des Schutzumschlags: Very Good. Reprint with corrections (first published 1974). Hardback copy in dark green cloth boards with gold gilt lettering to spine. Unclipped dustjacket in new removable protective clear sleeve. 289pp. Not library copy, no inscriptions. (25/1).

Zustand: New. In.

Paperback. Zustand: Brand New. 256 pages. 8.43x5.35x0.39 inches. In Stock.

290 Seiten, 0521085209 Sprache: Englisch Gewicht in Gramm: 510 Groß 8°, Original-Pappband (Hardcover), Einband leicht lichtrandig, Schnitt minimal fleckig, Vorsatz und Titel mit kleinem montiertem Besitzvermerk, insgesamt gutes und innen sauberes Exemplar,

Zustand: Fair. 1945. First Edition. 224 pages. No dust jacket. Green cloth boards with gilt lettering. Contains black and white illustrations. Clean pages and illustrations with light tanning and mild foxing throughout. More pronounced to free endpapers and pastedowns. Pen inscription to front free endpaper. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces and bumping to corners. Moderate sunning to spine and edges with crushing to spine ends. Gilt lettering is darkened. Visible wear marks to boards. Boards are bowed.

Hardcover. Zustand: Very good. second edition. 6 x 9 in. Cloth boards. Condition is VERY GOOD ; covers clean, mild edge wear. Binding tight. Endpapers quite toned, text clean and unmarked. Cook, Stax.

Zustand: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,700grams, ISBN:

pp.236. 8vo. Fine hardback in fine dw., gently sunned on spine. Highly recommended.

Zustand: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,450grams, ISBN: