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useful for determining the origin and the age of a given manuscript. Information on the groups, acquisitions and bequests which together constitute the collection of Javanese manuscripts is also to be found in the introductions of the Dutch catalogues of Vreede (1892) and Juynboll (1907 and 1911) which will be discussed later (50.008). In the older catalogues the chronologically and locally differentiated groups did not appear to full advantage, due to the structure of these books. I. The first important group of Javanese manuscripts which was incor porated in the Leiden University Library, in 1864, was the so-called Delft collection, mainly consisting of well-written Central Javanese, Surakarta, codexes, originally collected, or made, for the Institute for the training of East Indian civil servants in Delft. In consequence of the transfer of the centre of the training from Delft to Leiden the collection was transferred, too. With a few exceptions the codexes LOr 1786-1882 belong to the Delft collection. II. In 1868 a small but valuable collection of Javanese manuscripts, LOr 1904-1914, mostly of West Pasisir (North Coast) origin, and dealing with law matters, was bought from the heirs of Mr S. Keyzer, a former judge in Java. III. In 1871 a varied collection of manuscripts partly of Pasisir (North Coast) origin, partly from Surakarta, originally belonging to A. D. Cornets de Groot, LOr 1969-2055 (among them many non-Javanese codexes) was transferred from the Government training college for Indian civil servants (“Rijksinstelling”) of Leiden to the University Library. IV. In 1874 an important collection of mostly well-written Surakarta manuscripts, LOr 2099-2188, was bought from the heirs of profes sor Roorda. V. In the same year a small collection of manuscripts of various origins, LOr 2191-2196, was presented to the University Library by Mr W. H. de Jong. VI. In 1876 a collection of Balinese palmleaf manuscripts, LOr 2200-2220, containing Old Javanese and Javanese-Balinese texts, was purchased through the intermediary of Dr Palmer van den Broek. VII. In 1878 a varied collection of manuscripts of different origins, LOr 2229-2267, was transferred to the Library, mainly from the Government training college for Indian civil servants (“Rijksinstel- ling”) of Leiden, which was closed. VIII. In 1881 a varied collection of manuscripts, partly of Yogyakarta origin, LOr 2291-2298, was bought for the Library at an auction.