This document defines and explains various legal concepts related to credit, bailment, loans, and deposits. It begins by defining credit and credit transactions, then discusses bailment and the parties involved. It describes the two types of loans - commodatum and mutuum. Commodatum is a loan for use where the borrower returns the same object, while mutuum is a loan for consumption where the borrower returns an equivalent amount. The document also covers the obligations of parties in bailment and loan contracts, as well as interest, compound interest, and deposits. It provides details on voluntary deposits and the obligations of depositaries.