Samuel Smiles：Self-Help, Excerpt 91

The alchemist acted on the hint, and began his experiments, working night and day. He prosecuted his investigations for a long time with great assiduity, but without success. At length some red clay, brought to him for the purpose of making his crucibles, set him on the right track. He found that this clay, when submitted to a high temperature, became vitrified and retained its shape; and that its texture resembled that of porcelain, excepting in colour and opacity. He had in fact accidentally discovered red porcelain, and he proceeded to manufacture it and sell it as porcelain.

Source： https://www.gutenberg.org/ebooks/935
Locator：Excerpt 91 · Verified：2026-10-19 · Verification：Short excerpt

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