of print.

Changes over time

With the third edition of BOOST (1984), the original descriptions taken
from secondary sources were supplemented with additions based on first-hand
consultation of manuscripts by a large number of scholars, but especially by
the compilers of that edition; and BOOST's scope was expanded radically.

Currently, all MSS of medieval Spanish works produced before 1800 are included,
with selected MSS from the 19th and even 20th centuries that may reflect
now-lost originals. As for printed books, some post-1501 editions have been
included, chiefly on the basis of F. J. Norton's fundamental A Descriptive
Catalogue of Printing in Spain and Portugal 1501-1520 (Cambridge, 1978).
Increasingly we shall be able to take advantage of Julián
Martín Abad's even more important Post-incunables ibéricos
(Madrid: Ollero y Ramos, 2001; Adenda, 2007); although the
editorial team has still not been able to cullinformation from that
work systematically.

In the current database the Analytic table, which most closely corresponds to
the original organization of BOOST, since it also lists a given text in a
given manuscript or printed edition, contains 9,973 records as of March 1, 2011,
more than ten times as many as the 966 entries of the first edition.
The other tables in BETA contain another 20,000 records with detailed
descriptions of manuscripts and printed editions, works, persons,
reference works, and libraries.

As in any database project that has existed for over thirty years,
criteria for data entry have expanded as the evolving data base management
system has made it possible to capture more information. Thus, in the
earliest years, only information absolutely essential for the purposes of DOSL
was recorded: Author, Title, Present Location, Original Production Date,
Specific Production Date, and secondary