sawdust, was sprinkled over the floor, especially in
dining-rooms, so that the dust and any impurities might be swept up with it
2.4, 81; Juv.
; cf. Plin. Nat.
). In smarter houses the sawdust was dyed with saffron or
vermilion (Petron. 68). Heliogabalus is said to have had his portico strewn
with gold dust, or gold filings (scobe auri
and to have regretted that he could invent nothing more costly for the
purpose, (Lamprid. Elagab.
31; for this scobis
metal-working, cf. Plin. Nat. 34.111