Illustrated Companion to the Latin Dictionary/Miliarium

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. 

MILIA'RIUM. A copper for heating water, of considerable height, but small diameter, so that it presented the appearance of a tall and narrow vessel. (Pallad. v. 8. 7. altum et angustum.) It was commonly used in heating water for the baths (Pallad. i. 40. 3.), as well as for domestic purposes (Senec. Q. N. iii. 24.); and, consequently, was made of various dimensions. (Senec. Q. N. iv. 9.) The illustration (Miliarium/1.1), which corresponds exactly with the above description, represents a miliarium, formerly used in the baths of Pompeii restored according to the impression which it has left in the mortar of the wall against which it was set; the square aperture underneath is the mouth of the furnace, actually existing, over which it was placed.

2. A short thick column, which rose from the centre of the basin (mortarium) in a mill for bruising olives (trapetum, Cato, R. R. xx. 1. Id. xxii. 1.) It is marked 2. 2. on the annexed section and elevation (Miliarium/2.1) of an original olive-mill, found at Stabia. The object of it was to support the square box (cupa, 5.), into which one extremity of each axle, on which the wheels (orbes, 3. 3.) revolved, was inserted; so that when the wheels were driven round the basin (1. 1.), it constituted the pivot upon which they and their axles turned.

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  Miliarium/1.1
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  Miliarium/2.1