[942] Senec. De Provident. p. 138. Cicero ad Fratrem, lib. iii. ep. i. Plin. lib. ii. ep. 17.
[943] Statii Sylv. lib. i. 5, 17.
[944] Pallad. De Re Rust. lib. i. 20, p. 876.
[945] Digestor. lib. viii. tit. 2, 13.
[946] A passage from And. Baccii Liber de thermis, fol. p. 263, contains information much of the same kind. See also Robortelli Laconici seu sudationis, explicatio, in Grævii Thes. Antiq. Rom. xii. p. 385. Vitruvius, cum annotat. G. Philandri, Lugd. 1586, 4to, p. 279. Philander says that the ancients conveyed from subterranean stoves, into the apartments above, the steam of boiling water; but of this I have found no proof. If this be true, the Roman baths must have been like the Russian sweating-baths. [Many of the large establishments and work-shops in this country are now heated by means of hot air, hot water, or steam circulating through a ramified system of pipes.]
[947] Juliani op. Lips. 1696, fol. p. 341.
[948] Zanetti, p. 78, quotes a charter of that year, in which the following words occur: “Cum tota sua cella et domo, et caminatis cum suo solario, et aliis caminatis.”
[949] Such is the opinion of Muratori, Antiq. Ital. Med. Æv. ii. p. 418.
[950] In Muratori, Script. Ital. vol. ix.
[951] Ibid.