7. Tathâgata-guhyaka. This work is known by the analysis of Rajendralala Mitra from which it appears to be a Tantra of the worst class and probably late. Its proper title is said to be Śrîguhyasamaja. Watanabe states that the work catalogued by Nanjio under No. 1027 and translated into Chinese about 1000 A.D. is an expurgated version of it. The Śikshâsamuccaya cites the Tathâgata-guhya-sûtra several times. The relations of these works to one another are not quite clear. 8. Samâdhirâja[140] is a Vyâkaraṇa or narrative describing different forms of meditation of which the Samâdhirâja is the greatest and best. The scene is laid on the Vulture's Peak and the principal interlocutors are Śâkyamuni and Candraprabha, a rich man of Râjagṛiha. It appears to be the same as the Candrapradîpa-sûtra and is a complete and copious treatise, which not only expounds the topic from which it takes its name but incidentally enumerates the chief principles of Mahayanism. Watanabe[141] states that it is the Yüeh-têng-san-mei-ching (Nanjio, 191) translated about 450 and again in 557 A.D. 9. Daśabhûmîśvara.[142] An account of the ten stages in the career of a Bodhisattva before he can attain to Buddhahood. The scene is laid in the paradise of Indra where Śâkyamuni was temporarily sojourning and the principal interlocutor is a Bodhisattva named Vajragarbha. It is said to be the same as the Daśabhûmika-sûtra first translated into Chinese about 300 A.D. (Nanjio, 105 and 110) but this work appears to be merely a portion of the Gaṇḍa-vyûha or Avataṃsaka mentioned above. These nine works are all extant in Sanskrit and are known in Nepal as the nine Dharmas, the word Dharma being an abbreviation for _Dharmaparyâya_, revolution or exposition of the law, a term frequently used in the works themselves to describe a comprehensive discourse delivered by the Buddha. They are all quoted in the Śikshâsamuccaya, supposed to have been written about 650 A.D. No similar collection of nine seems to be known in Tibet or the Far East and the origin of the selection is obscure. As however the list does not include the Svayambhû Purâṇa, the principal indigenous scripture of Nepal, it may go back to an Indian source and represent an old tradition. Besides the nine Dharmas, numerous other sûtras exist in Sanskrit, Chinese, Tibetan and the languages of Central Asia. Few have been edited or translated and even when something is known of their character detailed information as to their contents is usually wanting. Among the better known are the following.