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436 Speculations in the Medical Schools [CH. XIII Nāgārjuna's Yoga-śataka, containing the eight regular divisions of Indian Medicine, and Nāgārjuna's Jiva-sūtra and Bhesaja-kalpa, all of which were translated into Tibetan. Three works on the Astāngahrdaya, called Astānga-hydaya-nāma-vaidūryaka-bhāşya, Padārtha-candrikā-prabhāsa-nāma, Astānga-hşdaya-vrtti and Vaidyakāşțānga-hrdaya-vịtter bhesaja-nāma-sūci, were also translated into Tibetan.
The Ayur-veda-sūtra is a work by Yogānandanātha, published with a commentary by the same author in the Mysore University Sanskrit series in 1922, with an introduction by Dr Shama Sastry. It is rightly pointed out in the introduction that this is a very modern work, written after the Bhāva-prakāśa, probably in the sixteenth century. It contains sixteen chapters and is an attempt to connect Ayur-veda with Patañjali's Yoga system. It endeavours to show how different kinds of food increase the sattva, rajas and tamas qualities and how yoga practices, fasting and the like, influence the conditions of the body. Its contribution, whether as a work of Ayur-veda or as a work of philosophy, is rather slight. It shows a tendency to connect Yoga with Ayur-veda, while the Virasimhāvalokita is a work which tries to connect astrology with the same.