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 that in such cases the proprietor is doing something upon his property which is in its nature dangerous and not necessary (or usual?) in the ordinary management of the particular kind of property, and he is therefore bound to observe a higher degree of diligence to prevent injury to his neighbour". The use of "Rylands" in Scots law, which was started in "Mackintosh", finally came to an end in "RHM Bakeries v Strathclyde Regional Council". Lord Fraser, as part of his judgment, stated that the idea of strict liability that was brought into play by "Rylands" was not a part