Due to educational reforms instituted by Spain in 1865, the UST was given the responsibility of confirming the grades given to students of all secondary schools in the Philippines. These compilations are arranged in hefty (45 x 63 cm.) enrolment registers called libros de matriculas. Names are grouped by school and arranged alphabetically by first name; there are columns for birthplace, residence, subjects and grades. Secondary schools represented in these libros include: Manila schools such as Letran, Ateneo Municipal, and various private schools; those in the provinces such as Colegio de Vigan, Colegio de Dagupan, Colegio de Nueva Caceres, Colegio de Guinobatan, Colegio de Cebu, Colegio de San Vicente de Jaro, and Colegio de Bacolod. Thus this section of the Archives is of particular relevance to almost all parts of the country. 28 volumes, 1866-1915.