[2413]. This may be the origin of the foot-shaped stamp so common in Roman lamps and vases (see Blümner, Technologie, ii. p. 18).

[2414]. Cf. also Wright, Celt, Roman, and Saxon4, p. 186.

[2415]. Vitr. ii. 3. This passage with Pallad. Agric. vi. 12 and Isid. Etym. xix. 10, 16 are the loci classici on the subject.

[2416]. Blümner, ii. p. 20, points out that there are very few instances of this, and perhaps Vitruvius’ idea was not practical.

[2417]. Middleton, Remains of Ancient Rome, i. pp. 12, 62.

[2418]. See Roach-Smith, Illustr. Rom. London, p. 112.

[2419]. xxxix. 61 (ἐκ πλίνθων).

[2420]. Apud Non., p. 48 (s.v. suffundatum).

[2421]. De Div. ii. 47, 99.

[2422]. Vitr. ii. 8, 18.