I Am Surprised That Some Chemists Consider The Black Caoutchouc Of Commerce, As Being Mixed With Soot, Blackened By The

Smoke to which it has been exposed.) When we reflect on the immense variety of plants in the equinoctial regions

That are capable of furnishing caoutchouc, it is to be regretted that this substance, so eminently useful, is not found among us at a lower price. Without cultivating trees with a milky sap, a sufficient quantity of caoutchouc might be collected in the missions of the Orinoco alone for the consumption of civilized Europe.* (* We saw in Guiana, besides the jacio and the curvana, two other trees that yield caoutchouc in abundance; on the banks of the Atabapo the guamaqui with jatropha leaves, and at Maypures the cime.) In the kingdom of New Grenada some successful attempts have been made to make boots and shoes of this substance without a seam. Among the American nations, the Omaguas of the Amazon best understand how to manufacture caoutchouc.

Four days had passed, and our canoe had not yet arrived at the landing-place of the Rio Pimichin. "You want for nothing in my mission," said Father Cereso; "you have plantains and fish; at night you are not stung by mosquitos; and the longer you stay, the better chance you will have of seeing the stars of my country. If your boat be destroyed in the portage, we will give you another; and I shall have had the satisfaction of passing some weeks con gente blanca y de razon." ("With white and rational people." European self-love usually opposes the gente de razon to the gente parda, or coloured people.) Notwithstanding our impatience, we listened with interest to the information given us by the worthy missionary.

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