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Updated: May 1, 2025
A priori it was highly improbable, if not impossible, that nebulous masses should still remain uncondensed, while others have been condensed millions of years ago. Personal Narrative of the Origin of the Caoutchouc, or India-Rubber Manufacture in England. By Thomas Hancock.
In the absence of ferrule cement, which can be had at all sporting goods stores, one can use chewing gum, or better yet, a mixture of caoutchouc pitch and scale shellac heated together in equal parts. Heat your fixative as you would sealing wax, over a candle, also heat the arrow and the metal head. Put on with these adhesives, it seldom pulls off.
It is perhaps the development of a vegetable acid which then furnishes oxygen to the albumen. The formation of the coagulum of the hevea, or of real caoutchouc, is nevertheless much more rapid in contact with the air.
Karl had also made an excursion into the forest, and brought back with him large quantities of a gum, which he had extracted from a tree of the genus ficus a sort of caoutchouc which is yielded by many species of ficus in the forests of the Lower Himalayas. Karl had gone in search of this substance, because he knew it would be required for paying the seams, and rendering them air-tight.
In the evening her female companions used a small musical instrument, which produced a kind of screeching sound, as an accompaniment of the death wail. In the construction of this instrument they make use of caoutchouc, which, with a variety of other gums, is found in different parts of this country.
The tube, f, passing horizontally through the caoutchouc stopper, e, is intended to admit bubbles of air, and so equalize the pressure and at the same time afford a means of measuring the rapidity of the absorption of water by the transpiring shoot. Water is then sucked in from a, and the whole apparatus carefully filled.
We drove along roads with over-arching trees, through whose dense leafage the noon sunshine only trickled in dancing, broken lights; umbrella trees, caoutchouc, bamboo, mango, orange, breadfruit, candlenut, monkey pod, date and coco palms, alligator pears, "prides" of Barbary, India, and Peru, and huge-leaved, wide-spreading trees, exotics from the South Seas, many of them rich in parasitic ferns, and others blazing with bright, fantastic blossoms.
Less of that animal matter which is coagulable by acids and by the absorption of atmospheric oxygen, is found in it. It is no doubt occasioned by the caoutchouc, which is not yet separated, and which forms one mass with the albumen and the caseum, as the butter and the caseum in animal milk.
It is a small tree, however, rarely growing over forty feet high, with thick leaves and numerous branches. The leaves are the most important part of it for it is upon these the silkworms feed, spinning their fine threads out of the milky juice, which in its properties resembles the juice of the caoutchouc tree.
As far as I can see, messieurs, there is not much to choose between you. You, Monsieur le Chevalier, desired to buy diamonds at the price of paste. You, madame, feared you had bought paste at the price of diamonds. You, monsieur the secretary, tried to get the stones from an unsuspecting person for half their value. He took you all in, that brave Colonel Caoutchouc it was diamond cut diamond."
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