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For centuries the silk-worm was only known to the Chinese, the Greeks and Romans used the substance without knowing from what it was produced or whence it came. In the sixth century, in the reign of Justinian, the eggs of the silk-worm were brought secretly to Constantinople from China by the Nestorian monks in a hollow cane, hatched, and successfully propagated.
When, therefore, in 1810, the news came that the French army had overrun Spain, democratic ideas so long cherished in secret and propagated so industriously by Miranda and his followers at last found expression in a series of uprisings in the four viceroyalties of La Plata, Peru, New Granada, and New Spain. But in each of these viceroyalties the revolution ran a different course.
He had since taken precautions, and not met with any such cases. Am. Jour. Med. Sc., October, 1851. Copland. Considers it proved that puerperal fever maybe propagated by the hands and the clothes, or either, of a third person, the bed-clothes or body-clothes of a patient. Mentions a new series of cases, one of which he saw, with the practitioner who had attended them.
On the other hand, it is not impossible that, left to the unimpeded action of the natural laws that govern the existence of various races, the black population, no longer directly preserved and propagated for the purposes of slavery, might gradually decrease and dwindle, as it does at the North where, besides the unfavourable influence of a cold climate on a race originally African, it suffers from its admixture with the whites, and the amalgamation of the two races, as far as it goes, tends evidently to the destruction of the weaker.
I would not here be thought to forget, much less to deny, that Nature, in the production of things, makes several of them alike: there is nothing more obvious, especially in the races of animals, and all things propagated by seed.
"For fifty years the Presidio and the Mission of Todos Santos have had but this communication with the outer world," he said blandly. "Hidden by impenetrable fogs from the ocean pathway at their door, cut off by burning and sterile deserts from the surrounding country, they have preserved a trust and propagated a faith in enforced but not unhappy seclusion.
"What nobler work? How could the Church of God be more gloriously propagated? How could higher merit be obtained by faithful Catholics? It must succeed. Spain was invincible in valor, inexhaustible in wealth. Heaven itself offered them an opportunity. They had nothing now to fear from the Turk, for they had concluded a truce with him; nothing from the French, for they were embroiled in civil war.
Apples and pears are more easily propagated by ingrafting than by budding. Ingrafting is a similar process to budding, with this advantage, that it can be performed on large trees, whereas budding can be applied only on small ones. The two common kinds of ingrafting are whip-grafting and split-grafting. The first kind is for young trees, and the other for large ones.
Moreover, there are marked differences in regard to the transmission of the recognized filth diseases typhoid fever and cholera and yellow fever. The first-mentioned diseases are largely propagated by means of a contaminated water supply, whereas there is no evidence that yellow fever is ever communicated in this way.
Meanwhile these islands, stiff with cold and frost, and in a distant region of the world, remote from the visible sun, received the beams of light, that is, the holy precepts of Christ, the true Sun, showing to the whole world his splendour, not only from the temporal firmament, but from the height of heaven, which surpasses every thing temporal, at the latter part, as we know, of the reign of Tiberius Caesar, by whom his religion was propagated without impediment, and death threatened to those who interfered with its professors.
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