In eo autem minus tympanum includatur cardinibus ex torno masculo et femina inter se coartatis, ita uti minus tympanum quemadmodum epitonium in maiore circumagendo arte leniterque versetur.
Within this is enclosed a lesser drum joined to it with tenon and socket, so that the lesser drum turning round within the greater, like a stopcock, fits closely and smoothly in its revolution.
final_alignments\Vitruvius_Architecture_Book_9.json