Second letter to H E Beckett, regarding a paper 'Short period phosphorescence and electron traps' by G F J Garlick and Maurice Hugh Frederick Wilkins Sectional Committee: Physics Encloses 30 copies of the paper, and will send the further 12 copies as and when this is possible. Requests acknowledgement of receipt due to the confidential nature of the document. [Published in the 'Proceedings of the Royal Society of London'] No received date. 8 March 1944