[47] See an account of these different sorts of Mulberry, in the notes at the end of this Volume.
[CHAPTER IX.]
Of Indigo, Tobacco, Cotton, Wax, Hops, and Saffron.
The high lands of Louisiana produce a natural Indigo: what I saw in two or three places where I have observed it, grew at the edges of the thick woods, which shews it delights in a good, but light soil. One of these stalks was but ten or twelve inches high, its wood at least three lines in diameter, and of as fine a green as its leaf; it was as tender as the rib of a cabbage leaf; when its head was blown a little, the two other stalks shot in a few days, the one seventeen, the other nineteen inches high; the stem was six lines thick below, and of a very lively green, and still very tender, the lower part only began to turn brown a little; the tops of both were equally ill furnished with leaves, and without branches; which makes it to be presumed, that being so thriving and of so fine a growth, it would have shot very high, and surpass in vigour and heighth the cultivated Indigo. The stalk of the Indigo, cultivated by the French at the Natchez, turned brown before it shot eleven or twelve inches; when in seed it was five feet high and upwards, and surpassed in vigour what was cultivated in the Lower Louisiana, that is, in the quarter about New Orleans: but the natural, which I had an opportunity of seeing only young and tender, promised to become much taller and stouter than ours, and to yield more.
The Indigo cultivated in Louisiana comes from the islands; its grain is of the bigness of one line, and about a quarter longer, brown and hard, flatted at the extremities, because it is compressed in its pod. This grain is sown in a soil prepared like a garden, and the field where it is cultivated is called the Indigo-garden. In order to sow it, holes are made on a straight line with a small hoe, a foot asunder; in each hole four or five seeds are put, which are covered with earth; great care is had not to suffer any strange plants to grow near it, which would choak it; and it is sown a foot asunder, to the end it may draw the fuller nourishment, and be weeded without grazing or ruffling the leaf, which is that which gives the Indigo. When its leaf is quite come to its shape, it resembles exactly that of the Acacia, so well known in France, only that it is smaller.
It is cut with large pruning-knives, or a sort of sickles, with about six or seven inches aperture, which should be pretty strong. It ought to be cut before its wood hardens; and to be green as its leaf, which ought, however, to have a bluish eye or cast. When cut it is conveyed into the rotting-tub, as we shall presently explain. According as the soil is better or worse, it shoots higher or lower; the tuft of the first cutting, which grows round, does not exceed eight inches in heighth and breadth: the second cutting rises sometimes to a foot. In cutting the Indigo you are to set your foot upon the root, in order to prevent the pulling it out of the earth; and to be upon your guard not to cut yourself, as the tool is dangerous.
In order to make an Indigo-work, a shed is first of all to be built: this building is at least twenty feet high, without walls or flooring, but only covered. The whole is built upon posts, which may be closed with mats, if you please: this building has twenty feet in breadth, and at least thirty in length. In this shed three vats or large tubs are set in such a manner, that the water may be easily drained off from the first, which is the lowermost and smallest. The second rests with the edge of its bottom on the upper edge of the first, so that the water may easily run from it into the one below. This second vat is not broader but deeper than the first, and is called the Battery; for this reason it has its beaters, which are little buckets formed of four ends of boards, about eight inches long, which together have the figure of the hopper of a mill; a stick runs across them, which is put into a wooden fork, in order to beat the Indigo: there are two of them on each side, which in all make four.
The third vat is placed in the same manner over the second, and is as big again, that it may hold the leaves; it is called the Rotting-tub, because the leaves which are put into it are deadened, not corrupted or spoiled therein. The Indigo-operator, who conducts the whole work, knows when it is time to let the water into the second vat; then he lets go the cock; for if the leaves were left too long, the Indigo would be too black; it must have no more time than what is sufficient to discharge a kind of flower or froth that is found upon the leaf.
The water, when it is all in the second vat, is beat till the Indigo-operator gives orders to cease; which he does not before he has several times taken up some of this water with a silver cup, by way of assay, in order to know the exact time in which they ought to give over beating the water: and this is a secret which practice alone can teach with certainty.