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 by "Rylands". Subsequently, "Transco" disapproved of the Australian decision in "Burnie Port Authority v General Jones Pty Ltd" to absorb "Rylands" into the general law of negligence, deciding that "Rylands" should continue to exist but, as Lord Bingham said, as a "sub-species of nuisance...while insisting upon its essential nature and purpose; and...restate it so as to achieve as much certainty and clarity as is attainable". It is now a sub-tort, rather than an independent tort; they have confirmed that it will be allowed to remain. Donal Nolan has argued that to consider "Rylands" as part of private nuisance is unsound.