"Sotheby’s is auctioning the Duke of Northumberland's collection, which features a manuscript for creating a “philosopher’s stone” - the treasures are housed at Alnwick Castle where Harry Potter and the Philosopher’s Stone was filmed."
The manuscript mentioned in the Telegraph article would appear to be
the early copy of the 'Crowning of Nature'.
While some of these manuscripts are from Rainsford's collection,
the alchemical core is likely to be the remains of the library of Henry Percy,
the "Wizard Earl" who for some years was imprisoned by
King James the First in the Tower of London, where along with
Thomas Harriot and Raleigh, Percy was able to set up an alchemical laboratory and
continue his metaphysical studies. There is a thread on this forum with some discussion.
Last edited on Fri Jul 25th, 2014 09:49 am by adammclean
"The University of Pennsylvania’s long tradition of collecting and study in the history of science recently gained potential for many new chapters of unprecedented research following the Penn Libraries’ acquisition of over fifty manuscripts from Ralph George Algernon Percy, the 12th Duke of Northumberland. The manuscripts were collected by General Charles Rainsford (1728-1809), an 18th century gentleman scientist, and cover subjects such as alchemy, astrology, Cabbala and Tarot."