Letter, Arthur Tindall Hopwood, Department of Geology, British Museum (Natural History), Cromwell Road, London, to Percy George Hamnall Boswell, Royal School of Mines Thanks Boswell for allowing him to see Louis Leakey's letter. Hopwood admits that his samples were not taken with the express purpose of analysis in mind, but they remain representative of Olduvai beds and Reck has agreed with this assessment. Ahrens' results may be more satisfactory. In the light of Mollison's letter, the steppe lime cannot be ignored Hopwood can let Boswell have concretion samples from bed 1, if he would like them. He has just received Reck's manuscript which needs revision. Reck is very anxious not to give offence. 27 September 1932