containing these defects. Among these, A presents a commentary different from B-F, for verse 4. 15. Again, while A presents intact the long quotation in the commentary - on 1. 11, all the other mss., B to F, exhibit minor gaps herein. This distinction between them is found elsewhere too. (See, for instance, footnotes under verses 4. 1 ; 6. 7, 11 etc.). One can therefore postulate the existence of two main groups of commentary manuscripts, one represented by ms. A and the other by mss. B-F. Of the latter group, on the basis of individual peculiarities, B forms a group by itself while CDE form another (vide common omissions in the com. on 3. 11 and 6. 2-3), while F falls outside this group. Here, again, C. D form a separate group (vide peculiarities noticed under 3. 25, 28-29 ; 6. 4), while E presents some distinctive peculiarities.
The pedigree of the mss., based on the above analysis, could be represented as follows :
Appendices
Of the ten Appendices added towards the end of this publication, the first nine are critical editions of nine independent tracts based on the Sphutanirnaya-tantra, all produced in Kerala, and, mostly, discovered and identified from among miscellaneous matter found interspersed with or in the end leaves of astronomical codices. Besides being interesting in themselves, these tracts serve to underline the continuity of astronomical investigations in the land and the influence of Sphutanirnaya in that process. These tracts take the form of recasts, computed results, zero corrections, comparative calculations and directions for charting the True Positions of planets at any given moment. These tracts are all, apparently, anonymous, and most of them do not have any regular titles given to them by their authors. Appropriate titles, based on the topics treated, have,
