of the Asterism18 211 , same with thost of the Siddhént66-}jromani. their diferences never amount ing, eve in a single instance, to more than 3'; but the latitudes of the Khanda-Kataka often vary considerably from both. 'The Graha-Laghava, the only other authority acossible to us, presents a series of variations of its own, independent of those of eithey of the other treatiseB. All these differences are reported by us belowin treating of each separate asterism The presiding divinities of the asterisms we give upon the authority o; the Taittiriya-Sanunt, (iv. 4, 10, 1-3), the Taittiriy-Br&htnana (ii. 1. 1, 2, as cited by Weber, Zeitsch. . . K. a. Morg., vii. 283 etc. . ४nd Ind. Stud. i, 90 etc.), the Muhort-ind¥rmati, and Colebrooke; those of about half the asterisms are also indirectly given in our hextin the form of for the asterisms derived from them I'he netmeg nd situations of the Arab lunar stations are taken from Ideler's Untersuchungen vber die Sternnamen: for the Chinese meansions and their determining stars we nely solely upon the articles of Biot, to which we have already referred. Hb has seemed to us advisable, notwithstanding the prior treatment by Colebrooke of the same subject, to enter into a careful re-examination and identification of Zhe IIindu asterisons, because we could not accept in the bdlk, and without modification, the conclusions at which he Brrived. The identifications by Ideler of the Arab mansions, more thorough and correct than any which had been previously made, and Biot's comparison of the Chinese siedhave placed new and valuable materials in our hands: and these=together with a more exach comparison that was attempted by Colebrooke of the positions iven by the Hindus to their junction-8bars with the data of the modern catalogues, and a new and independent com. bination of the various materials which he himself furnishe-while bhey have led us to accept the greater number of his identifications, often establishing them more confidently than he was able to dohave alE० enabled us in many cases to nlter and amend is results. Such a re : examination was necessary, in order to furnish safe ground for a more detailed comparison of the three systems, which, as will be seen heafter, leads to important conclusionB respectin their historical relations to one anotheE. 1. Aguiहैthis breatise exhibibs the form dgui in the oder lists, as also often elsewhere, we have bhe dual agvitaage@g¢j¢u, the two bo£gemen, or A¢vins." The Alvins are personages in the ancient Hindu mybhology somewhat neally corresponding to the Castor and Pollux of the GreekE. They are the divinities of the asterism, which is named from them. The group i8 figured as ? horse's head, doubtless in allusion to its prasiding deities, and not from any imagined resemblance. The dual name leads us to expect to find it composed of two stars, and bhat is the number allotted to the agiarian by the kaly and Khanta-Kataka. The Shrey Siddharba (below, V, 16) designates the northern member of the group as
