The cotton manufactures are much improved, and the manufactories in that line are daily increasing in number and perfection. A new spinning-machine has produced here, I am told, 160,000 ells in length out of a pound of cotton. The fly-shuttle is now introduced into most of the manufactories in this country, and 25 pieces of narrow goods are thus made at once by a single workman. In adopting ARKWRIGHT'S system, the French have applied it to small machines, which occupy no more room than a common spinning-wheel.
Among other branches in which the French mechanics have particularly distinguished themselves, since the revolution, is the making of astronomical and philosophical instruments.
All the machines used here in coining have also been modified and improved. By one of these, the piece is struck at the same time on the edge and on the flat side in so perfect a manner, that the money thus coined cannot he counterfeited.
I have already mentioned the invention of a composition which supplies the place of black lead for pencils, and the discovery of a new and very expeditious method of tanning leather.
New species of earthen-ware have been invented, and those already known have received considerable improvement.
Chemists have put the manufacturers in possession of new means of decomposing and recomposing substances. Muriat of tin is now made here with such economy, that it is reduced to one-eighth of its former price. This salt is daily used in dying and in the manufacture of printed calicoes. Carbonates of strontia and of baryt, obtained by a new process, will shortly be sold in Paris at 3 francs the kilogramme. This discovery is expected to have a great influence on several important arts, such as the manufacture of glass, of soap, &c.
Articles of furniture, jewellery, and every branch dependent on design, are now remarkable for a purer taste than that which they formerly exhibited.
Indeed, the characteristic difference of the present state of French industry, and that in which it was before the revolution, is that most of the proprietors of the manufactories have received a scientific education. At that time, many of them were strangers to the principles applicable to the processes of their art; and, in this respect, they lay at the mercy of the routine, ignorance, and caprice of their workmen. At present, the happy effects of instruction, more widely-diffused, begin to be felt, and, in proportion as it is extended, it excites a spirit of emulation which promises no small advantage to French commerce.
[LETTER LXXXIV.]
Paris, March 23, 1802.