Illustrated Companion to the Latin Dictionary/Scalmus

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. 

SCAL'MUS (σκαλμός). The thowl; a strong wooden stay on the inside of a vessel to which the oar was attached by means of a thong (struppus) to keep it firm and steady in rowing. (Cic. Brut. 53. Id. Or. i. 38. Vitruv. x. 3. 6.) Being inside the vessel, this object is not apparent in any ancient work of art; but there can be no doubt that it was formed in the same way as in the Mediterranean galleys of the 16th century, from which the example (Scalmus/1.1) is taken.

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  Scalmus/1.1