P B Mason - Hort Sic James Dickson

[oldnick]

The P B Mason sheets in BIRM which are so often labelled 'Hort Sicc Dick' are presumably referring to the collection represented by http://herbariaunited.org/specimen/399512/ I see Dickson's h@h page has 'Published, 1793-1802, Hortus Siccus Britannicus, in 19 folio fascicles, often abbreviated to 'Dicks. H. S.'
6 h@h specimens have been edited as ex herb Dickson, but the question is whether they are really Dickson's own collection, or whether labels have been cut from a printed list and pasted on, as appears with
http://herbariaunited.org/specimen/391293/?image These sheets lack the catalogue numbers in 3 sets of Roman numerals written on the Mason labels