Wiktionary
locatio et conductio
n. (context legal finance English) A contract of hirehttp://law.academic.ru/10009/locatio_conductio. A bailmenthttp://documents.law.yale.edu/taxonomy/term/1471/0: goods delivered or property or land made available to the bailee in exchange for money or reward paid to the bailor. May be one of three main types: locatio rei, 'the hire of a thing'; locatio operarum, 'a worker for a wage'; locatio operis faciendi, a contract for 'services providing a result' http://penelope.uchicago.edu/Thayer/E/Roman/Texts/secondary/SMIGRA*/Locatio.html