Letter from Nevill Francis Mott, on a paper 'The study of crystal growth with the electron microscope. II. The observation of growth steps in the paraffin n-centacontane' by I M Dawson Paper reference code: A37 Mott remarks n-hectane is better than n-centacontane. Written at University of Bristol, H H Wills Physical Laboratory, Royal Fort, Bristol 8 [England]. [Published in Proceedings A, 1952]. Endorsed on recto as received 13 March 1952. 11 March 1952