(London, W. Bulmer and W. Nicol, 1821). 4to. No wrappers as extracted from "Philosophical Transactions" 1821 - Part II. Pp. 191-208 a. 8 engraved plates. Some offsetting to p. 208 from plate. Clean and fine.
Firts appearance of the paper which describes Davy's attempt to unroll the papyri scrolls of Herculaneum by using chlorine to decompose the gummy matter holding them together. His attempts were not very successfull.