Copy letter from Robert William Frederick Harrison, to Sir Joseph Norman Lockyer, Fellow of the Royal Society In reply to Lockyer's of 30 September, Harrison sees that Lockyer and Dr Lockyer's paper is published in number 406, page 500-504, recently issued. If Lockyer has not received his copies by the time this letter arrives, he should let Harrison know and he will write to the printers. 1 October 1902