Letter from Thomas Hunt Morgan, Department of Zoology, Columbia University, in the City of New York, to William Bate Hardy, Secretary, the Royal Society of London, Burlington House, London Morgan appreciates the great honour conferred on him by the President and Council of the Royal Society in the invitation to deliver the Croonian Lecture. He has succeeded in making arrangements to allow him to attend. He would be willing to contribute to a general meeting and he would like to make use of the occasion to illustrate, which would require about a dozen or twenty microscopes which he can procure in London from Spencer and Company. This would mean having a room with sufficient electrical outlets to run the lamps illuminating the microscopes. He has spoken to Professor Bateson on the matter and he was unsure that such a laboratrory would be available. Perhaps an informal demonstration might accompany an informal discussion and he leaves it to Hardy to decide what would be best. In a postscript, he notes that he has mislaid the card of dates and therefore Hardy should choose a date for him. He can sail around 20 May, arriving in London by 28 May. Therefore the first week of June, followed by a discussion the next week would be best as he needs to return almost immediately afterwards. 27 January 1922