Robert Watt devoted 25 years of his life to the compilation of the Bibliotheca Britannica and produced one of the most remarkable examples of bibliographical scholarship in the English language. This scarce work of reference continues to be an invaluable resource for scholars and librarians who wish to identify early printed materials covering a wide range of disciplines. Routledge is pleased to make this important source more widely available. Originally published in 1824, it is estimated to include more than 200,000 books, pamphlets and periodicals printed from 1450 to the early nineteenth century.