Molly's request for another Paul de Kock book makes Bloom think, "Must get that Capel street library book renewed or they'll write to Kearney, my guarantor." The public library on Capel (pronounced KAY-pəl) Street, one of the first two in the city's history, was approaching its 20th anniversary at the time represented in the novel. Bloom has secured the backing of a nearby businessman to obtain borrowing privileges. The library is mentioned also in Wandering Rocks (Miss Dunne has borrowed a Wilkie Collins novel), Ithaca (Bloom has borrowed an Arthur Conan Doyle book for himself), and Eumaeus. The street itself surfaces in characters' thoughts in Cyclops and Nausicaa.
From a point in the very center of Dublin, Capel Street runs northward from the River Liffey for a little over a third of a mile, ending near the southern terminus of Dorset Street. It is easy to imagine Bloom walking half a mile down one of his favorite shopping streets and turning into Capel to borrow books. Gifford notes that a book and music seller named Joseph Kearney had a Capel Street shop across the street from the library, but his address for the library is mistaken (it was at 106, not 166), so Kearney's shop would actually have been several blocks away.
Many lending libraries in Ireland, and around the world, still require young people to have an adult "guarantor" in order to receive a borrowing card, but it would be unusual today to require that of someone over 18 years of age. That Bloom was required to have a local businessman co-sign his membership application reflects, no doubt, the pervasive poverty and near-poverty in 1904 Dublin, where financial solvency could be expected of only a small percentage of the population. The lending policy reproduced here makes clear that in the event of unpaid fines "application will be made to the Guarantor" to pay them.
The Public Libraries Act of 1855 allowed for the establishment of free public lending libraries in Dublin, but the Corporation did not form a committee to do so until 1883. Two run-down Georgian tenement houses in Capel Street and Thomas Street were obtained for the purpose, to serve the north and south sides of the city respectively, and they opened within hours of each other on 1 October 1884.
The Dublin City Council website, from which two of the photographs on this page are taken, notes what a momentous development in the life of the city this was: "To mark the occasion, the Library Association of the United Kingdom held its Annual Conference in Dublin for the first and only time. Conference delegates attended the opening ceremony. Patrick Grogan, formerly a librarian at Maynooth College, became the first librarian at Capel Street. The staff was composed of a librarian, three library assistants, and a hall porter. The Capel Street library proved popular with the inhabitants of what was then a heavily industrialised area of the city. A newsroom had to be constructed at the rear of the building to accommodate 400 readers. A Ladies Reading Room was opened on 24 May 1895 and attracted a monthly attendance of 780. The daily average of books issued in 1901 was almost 300 volumes. In 1902 the daily average attendance in the newsroom was 1,200."