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
Rylands Papyri the Rylands Papyrus iii.458) respectively; Papyrus 31, a fragment of a papyrus manuscript of the "Epistle to the Romans"; and Papyrus 32, a fragment of the "Epistle to Titus." Also held in the collection is Papyrus Rylands 463, a copy of the apocryphal "Gospel of Mary" in Greek, and John Rylands Papyrus 470, a prayer in Koine Greek to the Theotokos, written about 250 CE in brown ink, the earliest known copy of such a prayer. It was acquired by the Library in 1917. Rylands Papyri The Rylands Papyri are a collection of thousands of papyrus fragments and documents from