The article briefly summarises the history of the historical library in the convent of the Order of Preachers at St Giles’ in Prague. This is followed by a report on the grant project of an internal competition of the Faculty of Arts of Charles University the aims of which were to write scientific papers and to make a list of separately printed occasional sermons deposited in the mentioned library in archival boxes under shelf marks E II 97–461 and E III 118–255. The paper deals with the character of this collection of texts, their content, authors, and time and place of their origin. The investigation of the content of the boxes has revealed that the project may also help to specify some records in Bibliografie cizojazyčných bohemikálních tisků 1501–1800 (A Bibliography of Foreign-Language Printed Bohemica from 1501–1800; BCBT).