Copy letter from Herbert Rix, to Professor Michael Foster, New Museums, Cambridge 'Dear Sir, I think the plate of Mr Wood Mason's paper was duly sent to Dr Gadow with the MS. [manuscript]. It was a double octavo plate - i.e. two octavo plates on one quarto sheet - and was folded in the MS. The packet was closed at the end & sealed, so it cannot have slipped out. Yours truly Herbert Rix'. 2 March 1891