Individuals, subject matter and locations noted include:

1. admission ticket British Association for the Advancement of Science, Royal College of Music evening discourse by Sir P Chalmers Mitchell 24 September 1931
   
   
2. admission ticket British Association for the Advancement of Science, discussion on "The evolution of the Universe" 29 September 1931
   
   
3. admission ticket British Association for the Advancement of Science, evening discourse by Sir James H Jeans 29 September 1931
   
   
4. admission ticket British Association for the Advancement of Science, evening discourse by Sir Oliver J Lodge 26 September 1931