Josiah Wedgwood now stood at the head of the potters of Staffordshire, and the manufactory at Etruria drew visitors from all parts of Europe. The motto of its founder was still 'Forward;' and, as Dr Smiles expresses it, there was with him no finality in the development of his profession. He studied chemistry, botany, drawing, designing, and conchology. His inquiring mind wanted to get to the bottom of everything. He journeyed to Cornwall, and was successful in getting kaolin for chinaware. Queen Charlotte patronised a new pearl-white teaware; and he succeeded in perfecting the pestle and mortar for the apothecary. He invented a pyrometer for measuring temperatures; and was elected Fellow of the Royal Society. Amongst his intimate friends were Dr Erasmus Darwin, poet and physician (the famous Charles Robert Darwin was a grandson, his mother having been a daughter of Wedgwood's), Boulton of Soho Works, James Watt, Thomas Clarkson, Sir Joseph Banks, and Thomas Day.
We have an example of the generosity of Wedgwood's disposition in his treatment of John Leslie, afterwards Professor Sir John Leslie of Edinburgh University. He was so well pleased with his tutoring of his sons that he settled an annuity of one hundred and fifty pounds upon him; and it may be that the influence of this able tutor led Thomas Wedgwood to take up the study of heliotype, and become a pioneer of photographic science, even before Daguerre. How industrious Wedgwood had been in his profession is evident from the seven thousand specimens of clay from all parts of the world which he had tested and analysed. The six entirely new pieces of earthenware and porcelain which, along with his Queen's ware, he had introduced early in his career, as painted and embellished, became the foundation of nearly all the fine earthenware and porcelains since produced. He had his reward, for besides a flourishing business, he left more than half a million of money.