The next patent taken out was in 1762, by “William White, of Fulham, in the county of Middlesex, potter,” for making white crucibles or melting-pots of Stourbridge clay and Dorsetshire clay, calcined, mixed with Woolwich sand, and water, and trodden together, and burned. Two years later, James Williamson and Joseph Spackman patented “a new method of turning ovals in pewter, English china, and all other earthenwares,” on a lathe with movable chucks and sliding ring, of their inventing. In 1766, “the Count de Lauraguais, of London,” having, “by his petition, humbly represented unto us, that by labour, study, travelling, and expence in trying experiments, he hath found out and invented ‘a new method of making porcelain ware in all its different branches, viz.--to make the coarser species of china, the more beautiful of the Indies, and the finest of Japan, in a manner different from any that is made in our dominions, and he, having the materials tryed in Great Britain, has brought the same to so great perfection that the porcelain made therewith after his new method far excells any that has hitherto been made in Great Britain, the same not being fusible by fire, as all other china made there is,’” took out a patent for fourteen years, but no specification seems to have been enrolled. During all this time the pottery district of Staffordshire was rapidly increasing, and important strides were being made by its manufacturers in the improvement of their art. In various parts of the country, too, old pot works continued their business in an improved state, and new ones sprang up in every direction. The history of the art, therefore, becomes that of the various works which I shall have to pass under review. The patents taken out from this period to the close of the century are some guide to this state of progress, but not much; for it is an undoubted fact, that many of the most important improvements and most reliable inventions were never patented at all, while others, which were the gradual result of daily practice, were not sufficiently “inventions” to entitle them to patent right. In 1768 William Cookworthy, of Plymouth, took out a patent for his newly invented porcelain, which was renewed in 1775 to Richard Champion; to these reference will be made under the heads of “Plymouth” and “Bristol.” In 1769 Josiah Wedgwood took out his only patent; it was for decorative, not manufacturing, processes, and will be spoken of more fully in the notice of Etruria. In 1782 James Crease patented some inventions in the making of sanitary vessels; and in the two following years “Joseph Cartledge, of Blackley, in the county of York, Doctor of Physic,” enrolled his specification for “a method of glazing earthenware.” This interesting document is as follows:--