§ 40. The Conception of a Juristic Act and the Kinds thereof § 62. The Acquisition of Ownership. Historical Introduction § 63. The Acquisition of Ownership. A. Derivative Acquisition. § 66. The Protection of Usucapio Possession § 67. The Protection of Juristic Possession. Possession and Ownership 1. THE CONCEPTION AND CONTENTS OF AN OBLIGATION. § 73. The Conception of an Obligation (Obligatory Right). |