Acapnasc. ligna (in Greek, ξύλα ἄκαπνα). Firewood specially prepared to burn without smoke, and in great request in antiquity, owing to the defects of the chimneys. It was prepared in three ways:
- 1. by scorching the wood over a fire, this being known as ligna cocta;
- 2. by soaking in water after removing the bark, and then drying;
- 3. by smearing with oil-lees (amurca), and then exposing to the sun. See Martial, xiii. 15.