John Rylands Library pitched roof over its reinforced concrete roof. Champneys designed a pitched roof but Mrs Rylands was advised that an internal stone vault would reduce the fire risk and it was not built. The £17 million project was completed by summer 2007 and the library reopened on 20 September 2007. By the nineteenth century Manchester was a prosperous industrial town and the demands of cotton manufacturing stimulated the growth of engineering and chemical industries. The town became 'abominably filthy' and was 'often covered, especially during the winter, with dense fogs ... there is at all times a copious descent of soots
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