CONISTON'S adopted son, John Ruskin, is still teaching academics about art.

Photography collectors Ken and Jenny Jacobson bought several photographs for £75,000 at an auction in 2006, speculating they were taken by Ruskin.

The Jacobson's visited the Ruskin Library at Lancaster University where the 300 daguerreotypes were analysed and the research helped them publish their book 'Carrying Off the Palaces: John Ruskin’s Lost Daguerreotypes'.

Professor Stephen Wildman, director of the Ruskin Library, said: "We are very pleased that the archive held by the Ruskin Foundation here at Lancaster – the largest of its kind in the world – has been of such use."