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 v Fletcher leading to the development of negligence and nuisance and the further development of trespass. At the time of "Rylands", the previous case relied upon was "Vaughan v Menlove", decided in the Court of Common Pleas in 1837. The case had almost identical facts to "Rylands", but strict liability was never even considered. The case is instead thought of as one of the best attempts of early 19th century English judges to build up the law of negligence. The outcome of "Rylands" meant that judges would again impose strict liability on defendants who accumulated dangerous things on their land without any