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expanded rapidly as a result of the interest shown by the Balinese cultured classes. Soon it was decided to make multiple machine typed romanized copies of the manuscripts. Through the activity and the bounty of Dr Hooykaas, some time acting adviser to the Kirtya board, many hundreds (though not quite a complete set) of romanized copies of the Kirtya collection could be incorporated in the Leiden University Library (see 50.004 - XXXVII). In 1966 Dr Hooykaas took the initiative to complete the set as far as possible by making available photographic copies of codexes still missing in the Leiden collection (see 50.004 - XLVII). Still the set in Leiden is not complete. From the beginning it was the intention of the Kirtya founders to collect all kinds of Balinese manuscripts. Therefore the collection is rich not only in Old Javanese and Javanese-Balinese, but also in purely native Balinese and in Sasak texts, from Lombok. The romanized copies in the Leiden University Library also include many Balinese and Sasak texts. In the present book only the Old Javanese and Javanese-Balinese texts are described and registered (in the General Index in volume III). A list of all manuscripts of the Kirtya collection, as far as known, has been added as an appendix to the present volume (50.070), for the same reason as mentioned before with reference to the collections of Javanese manuscripts in Java (see 50.002). The list is made up from the “Mededelingen van de Kirtya Liefrinck-van der Tuuk” which were published between 1928 and 1941, mainly in Yogyakarta. A descriptive catalogue of the Kirtya collection is not available (see also 50.006). In several cases it is difficult to make a distinction between Balinese texts on the one hand and Javanese-Balinese on the other, because since many centuries the literary idiom in Bali has been influenced by Javanese culture (see vol. I, 00020, sub B, and 00030, sub 2). As a rule in the present book all Javanese texts from Bali are registered as Javanese-Balinese. Only texts wholly written in an idiom showing indubitable Balinese characteristics are left out of the present book.

THE MAJOR COLLECTION OF THE LEIDEN UNIVERSITY LIBRARY (50.004) The present volume contains descriptive lists of three groups of Javanese manuscripts. They are called: the major Leiden collection, the minor Leiden collections, and the minor collections elsewhere in The Netherlands, The codex numbers of manuscripts belonging to the major Leiden collection have the distinctive mark LOr, which means Leiden Oriental department, in order to distinguish between oriental and European (Greek, Latin, medieval etc.) manu scripts belonging to the Leiden University Library. The LOr collection includes manuscripts written in many Asiatic languages, beginning with Arabic, Hebrew,