The Samkhya philosophy, containing (1) Sâmkhya-pravachana sûtram, with the vritti of Aniruddha, and the bhâṣya of Vijnâna Bhikṣu and extracts from the vritti-sâra of Mahâdeva Vedantin (2) Tatva samâsa (3) Sâmkhya kârikâ (4) Panchaśikhâ sûtram