Copy letter from Robert William Frederick Harrison to Professor [Sidney] J [John] Hickson, Fellow of the Royal Society 'Illustrations to paper by Professor J E S Moore and Miss F Tozer. To save time the enclosed illustrations are sent direct to Professor Hickson. A letter is following from Sir Archibald Geikie with reference to them, explaining that the accompanying new figures have been substituted for the four figures which originally accompanied the paper which were passed for publication in the proceedings [of the Royal Society]. 7 March 1908