595. Cod.Or. 5983 14 ff.; exercise book; 20‘/2 x I6V2 cm.; 24 lines per p.; Roman characters; handwriting of Van Ophuysen; Van Ophuysen coll. I ff. 14r-8r: Papatah dan patitih\ Minangkabau; containing 142 proverbs involving legal terms; ff. lv-3r: notes; II ff. 4v-5r: Pantun ibarat; containing 13 pantun. Van Ronkel 1921, p. 231, no. 569 (wrongly described as Cod.Or. 5975).

596. Cod.Or. 5988 26 ff.; exercise book; 21 x 16 cm.; 24 lines per p.; Roman characters; the writing was finished by Moesogit glr. Soetan Malajoe, teacher at Gunung Baringin on 27 July 1898; Van Ophuysen coll. I-II ff. lv-12v: Batak language; III ff. 13v-20r: Mangalo-alo boru; about elopement; the beginning (ff. 13v-17r) is in the Batak language; the end (ff. 17r-20r), one chapter, with the title Osong- osong, is in Malay. Voorhoeve 1977a, p. 217. Not described in Van Ronkel 1921.

597. Cod.Or. 5991 Nikah di Baroes 18 ff.; exercise book; 21 x I6V2 cm.; 24 lines per p.; Roman characters; written by Badoeakin; exercise book no. 227; Van Ophuysen coll. The text, ff. lv-10r, contains a description of the Barus marriage ceremonies. Not described in Van Ronkel 1921.

598. Cod.Or. 5992 Peroebahan adat dan hal orang Batak 22 ff.; exercise book; 21 x I6V2 cm.; 24 lines per p.; Roman characters; written by Si Moesogit Nasoetion and dated, at Huta Nopan, on 25 August 1892; Van Ophuysen coll.

The text, ff. lv-19v, contains a treatise about manners and customs of the Bataks; ff.