Rubber; Its Sources, Cultivation, and Preparation
by Harold Brown
Format: Paperback
ISBN13: 9781152771888
Paperback|9781152771888
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Overview
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 edition. Excerpt: ...ucceeded in placing on the market a material which is on the whole well suited to the requirements of the manufacturer, so much so that fine hard Para obtained from the wild trees of South America is still the market standard of the material. As is the case with nearly every material obtained from wild and naturally distributed plants, as soon as the demand for the substance is large, it is necessary, chiefly for convenience of collection, to grow it in plantations, and the modern industry of rubber production involves the successful management of trees grown on the plantation system. In this sense rubber-growing is a new industry, as to which there is little or no previous experience to guide, and therefore the problem of the successful growth of forest trees under plantation conditions has to be solved by the use of the scientific methods of observation and investigation. The proper methods of growing and manuring, the best times and methods of tapping, the nature of the parasitic and insect attacks to which trees in plantations are subject, have all had to be discovered, and on these subjects there is little or nothing to be learnt from previous forest experience. Although the primitive methods of curing and preparing rubber from the latex practised in South America are eminently successful, it cannot be doubted that these methods are capable of simplification and also of improvement. Rubber as hitherto known to the manufacturer is a mixture containing many other ingredients than the true caoutchouc of the chemist. To a large extent it is still a matter of doubt as to what is the beneficial influence, if any, of the proteins, the resin, and the other companions of caoutchouc on the physical properties of the material. Moreover the...
| ISBN-13 | 9781152771888 |
|---|---|
| ISBN-10 | 1152771884 |
| Weight | 0.51 Pounds |
| Dimensions | 9.00 x 6.00 x 0.35 In |
| List Price | $23.84 |
| Format | Paperback |
|---|---|
| Pages | 150 pages |
| Publisher | |
| Published On | 2010-01-01 |
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