British Association of Allergists Correspondence and associated papers, including: script of Dr John Freeman's paper on 'Forty Years of Allergy' with notes for Dale's reply (1948); correspondence re definition of allergy (1948); election of Dale as an honorary member (1949); summaries of papers given at meetings of the BAA (1950-52); invitation to Dale to take the chair at the 4th AGM (1952) 1948-1955