Letter from A Desborough of the Royal Naval Cordite Factory, to Sir Frederic Nathan of the Ministry of Munitions Estimates that 4400 tons of chestnuts would be needed per month to produce acetone -- notes that they are anxious to try acorns, which might have more advantages -- has written to Kew asking if they have stocks of acorns -- notes that chestnuts will need to be kiln dried. 19 June 1917