influenced the West even in astronomy. For in the eighth and ninth centuries they became the teachers of the Arabs in this science also. The siddhāntas (Arabic Sind Hind), the writings of Āryabhaṭa (called Arjehīr), and the Ahargaṇa (Arkand), attributed to Brahmagupta, were translated or adapted by the Arabs, and Khalifs of Bagdad repeatedly summoned Indian astronomers to their court to supervise this work. Through the Arabs, Indian astronomy then migrated to Europe, which in this case only received back in a roundabout way what it had given long before. Thus the Sanskrit word uchcha, "apex of a planet's orbit," was borrowed in the form of aux (gen. aug-is) in Latin translations of Arabic astronomers.
After Bhāskara (twelfth century), Hindu astronomy, ceasing to make further progress, became once more merged in the astrology from which it had sprung. It was now the turn of the Arabs, and, by a strange inversion of things, an Arabic writer of the ninth century who had written on Indian astronomy and arithmetic, in this period became an object of study to the Hindus. The old Greek terms remained, but new Arabic ones were added as the necessity for them arose.
The question as to whether Indian Medical Science in its earlier period was affected by that of the Greeks cannot yet be answered with certainty, the two systems not having hitherto been compared with sufficient care. Recently, however, some close parallels have been discovered between the works of Hippocrates and Charaka (according to a Chinese authority, the official physician of King Kanishka), which render Greek influence before the beginning of our era likely.
On the other hand, the effect of Hindu medical
