Illustrated Companion to the Latin Dictionary/Praefurnium

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

PRAEFUR'NIUM. The mouth of a furnace in a kiln (fornax), or to the heating chamber (hypocausis) of a set of baths; that is, the narrow passage or gully opening into the furnace through which the fuel was introduced. (Cato, R. R. 38. 1. Vitruv. v. 10. 2. Id. vii. 10.) It is shown in the annexed wood-cut (Praefurnium/1.1), representing the remains of a Roman pottery-kiln, discovered near Castor in Northamptonshire, by the dark archway at the bottom of the engraving, behind which the circular furnace is placed.

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  Praefurnium/1.1