John Rylands Library never operated as such. A caretaker's house was incorporated in the building until it was demolished for the extension of 1969. Electric lighting was chosen as the cleanest and safest alternative to gas but, as the use of electricity was in its early stages, the supply (110 volts DC) was generated on-site. This took some years to achieve due to the inexperience of contractors, but the library became one of the first public buildings in Manchester to be lit by electricity and continued to generate its own supply until 1950. Champneys suggested that, in order to protect the books and
John Rylands Library include medieval illuminated manuscripts and examples of early European printing, including a Gutenberg Bible, the second largest collection of printing by William Caxton, and the most extensive collection of the editions of the Aldine Press of Venice. The Rylands Library Papyrus P52 has a claim to be the earliest extant New Testament text. The library holds personal papers and letters of notable figures, among them Elizabeth Gaskell and John Dalton. The architectural style is primarily neo-Gothic with elements of Arts and Crafts Movement in the ornate and imposing gatehouse facing Deansgate which dominates the surrounding streetscape. The library, granted Grade