We have now seen the channels through which our cotton passes off into the great sea of commerce, to furnish the world its clothing. We have seen the origin and value of our provisions, and to whom they are sold. We have seen the sources whence our groceries are derived, and the millions of money they cost. To ascertain how far these several interests are sustained by one another, will be to determine how far any one of them becomes an element of expansion to the others. To decide a question of this nature with precision is impracticable. The statistics are not attainable. It may be illustrated, however, in various ways, so as to obtain a conclusion proximately accurate. Suppose, for example, that the supplies of food from the North were cut off, the manufactories left in their present condition, and the planters forced to raise their provisions and draught animals: in such circumstances, the export of cotton must cease, as the lands of these States could not be made to yield more than would subsist their own population, and supply the cotton demanded by the Northern States. Now, if this be true of the agricultural resources of the cotton States--and it is believed to be nearly the full extent of their capacity--then the surplus of cotton, to the value of more than a hundred millions of dollars, now annually sent abroad, stands as the representative of the yearly supplies which the cotton planters receive from the farmers north of the cotton line. This, therefore, as will afterward more fully appear, may be taken as the probable extent to which the supplies from the North serve as an element of slavery expansion in the article of cotton alone. FOOTNOTES: [19] Paganism has, long since, attained its maximum in agricultural industry, and the introduction of Christian civilization, into India, can, alone, lead to an increase of its productions for export. [20] 1839. [21] ENGLAND AND SLAVERY.--In the _London Times_ of October 7th, 1858, there is a long and very able and candid article on the subject of cotton. The proportions of the article used by different nations are thus stated: Great Britain, 51.28 France, 13.24 Northern Europe, 6.84 Other foreign ports, 5.91 Consumption of the U. S., 23.58 Thus it appears that England uses more of the raw material than all the rest of the world. After giving the great facts the writer uses the following language: "An advance of one pence per pound on the price of American cotton is welcomed by the slave-owner of the Southern States as supplying him with the sinews of war for the struggle now waging with the Northern abolitionists. This mere advance of one pence on our present annual consumption is equivalent to an annual subscription of sixteen millions of dollars toward the maintainance of American slavery."--_American Missionary._