1011 plays and libretti published in Italy between about 1720 and 1900 including a number of Italian translations of plays written by French, German and other European dramatists.

About 440 books published by William Pickering between 1820 and 1854 including reprints of classics and seventeenth-century Anglican religious works, plus contemporary writers of his time.

About 360 titles, particularly strong in first editions of English poetry and novels published in the nineteenth century and early twentieth century.

Papers, books, pamphlets, maps and ephemera about Ceylon, with an emphasis on the tea industry, collected by Manfred Claasz.

2121 books, pamphlets, programs, periodicals and plays published between 1755 and 1972. 

Around 400 Slavic monographs, 700 pamphlets on the economics and politics of Europe from the 1930s-1970s, and miscellaneous Harvard University departmental reports and academic papers.