Copy letter from Robert William Frederick Harrison to Dr E F Armstong, 98 London Road, Reading Harrison thanks Armstrong for sending his a copy of "The Central"' which always interests him. There is not likely to be any objection made to full quotations from Professor Dalby's paper in the Proceedings [of the Royal Society], but the Royal Society never lends original blocks. However there would be no objections to Armstrong having electros of the blocks, which can be obtained at a trifling cost. . If a request is sent to Harrison, mentioning precisely the blocks required, he will send an order to the printers. 19 February 1908