My cough is much worse at night and often prevents me from sleeping. It is not so much the daytime tiredness that I resent but the inability to proceed uninter- rupted with my dreams to run and play with my fancies and at last in the early hours of the morning to be visited with visions like a holy madman. The dreamer is like a Delian diver fishing for pearls from the depths of our inner sea of knowledge and I must have solved or rather resolved many more problems in my sleep than in my conscious hours.