Copy letter from Robert William Frederick Harrison, to Dr A W Campbell, County Asylum, Rainhill, near Liverpool 'Dear Sir, I have to acknowledge the receipt of your letter of April 29th with reference to your paper on "Cerebral Localisation" and to say that the parcel containing the revised manuscript and illustrations has been safely received. I am, yours faithfully, Robt [Robert] Harrison Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 3 May 1904