The ashes of the flax-plant have been analyzed. Dr. Royle, of England, a distinguished writer upon fibrous plants, assures us that the following compound will supply to one acre all that the plant requires, and leave the land as fertile as before the flax was gathered:—
lbs. s. d. Muriate of Potash 30 cost 2 6 Common Salt 28 " 0 3 Burned Plaster of Paris 34 " 0 6 Bone-Dust 54 " 3 3 Epsom Salts 56 " 4 0 10 6
It has been ascertained by the microscope that wool, cotton, hemp, jute, and flax are composed of minute fibres, each of which forms a hollow tube, and there is a close resemblance between the tubes of each,—the tube of the cotton, however, collapsing as it ripens. These tubes in the jute and flax are closely cemented together, and the term Fibrilia has been applied to fibres of the plant when reduced to a short staple like cotton. The process for effecting this result is very accurately described in a work just published, entitled "Fibrilia." The patentees of this invention claim that their process, in the space of twenty-four hours, converts the flax and tow, as they come from the threshing-mill, into an article which may be spun and woven by the same machinery as cotton. The article produced and lately exhibited at public meetings resembles cotton in its appearance and qualities, with the advantage that it wastes less in the manufacture, has more lustre, and receives a superior color. The patentees and their friends further claim that this cotton can be raised in all temperate latitudes, at the rate of four to eight hundred pounds per acre, and profess within the past year to have manufactured twelve thousand pounds.
These statements have been confidently made at public meetings in the State House of Massachusetts, and it is understood that a mill containing one hundred looms, half of which are now in operation, has been erected at Roxbury, under the direction of gentlemen who are familiar with the manufacture. Should the same results be obtained on a large scale which have attended the manufacture of the first few bales, the first step in a great revolution will be effected.
By the process of Mr. S.M. Allen of Boston, the great outlay of labor which has usually attended the culture and preparation of flax is avoided. When the plant has attained its full height of twenty to thirty inches, and its seed is ripened, it is harvested like grass with a mowing-machine, dried like hay or oats in the field, and then carried to the threshing-mill. After the seed is separated, the stalk is transferred to a patent brake, moved by two or four horses, and costing from three to four hundred dollars. This machine is composed of several sets of fluted iron rollers, between which the stalk passes from one set to another, the rollers gradually diminishing in size, but increasing in rapidity of motion, by means of which the woody texture of the plant is effectually broken and separated. The filaments are then carried through a coarse card or picker. The shives are thus separated, and two tons of stalks reduced to half a ton of linten, which may be either taken at once to the retort or baled for shipment. When the flax is thus reduced by the farmer to linten, the article is reputed to be worth to the manufacturer four cents a pound, or at least twenty dollars for the product of an acre yielding a single ton of flax-straw.
According to this statement the farmer would realize from his crop at least as follows:—
Estimated value of seed, 14 bushels, at $1.25 $17.50 Estimated value of 500 lbs. of linten, at 4 cts. 20.00 Estimated value of 3/4 of a ton of shives from unrotted stems, valuable for cattle, at $8.00 per ton 6.00
Produce of an acre $43.50
And this produce would be realized with little more labor than a crop of oats or wheat, returning less than twenty-five dollars to the acre. Unless the soil should be foul, no weeding would be required, while the breaking would cost little more than a second threshing, and a second crop of turnips can be taken from the same soil.
From the patent brake and the picker the linten is carried to a retort, which may hold from five hundred to three thousand pounds of fibre,—the capacity of one hundred cubic feet being required for each thousand pounds; and the retort, which may be made from boiler-plates, costs from three hundred to fifteen hundred dollars. Here the linten is put into a hot bath of air forced through heated water, and thus charged with moisture, which softens the filaments and diminishes the cohesion of the fibres. After this air-bath, pure water of the temperature of one hundred and forty to one hundred and sixty degrees is admitted into the retort, and the linten is immersed in it for five or six hours.