Copy letter from Robert William Frederick Harrison to F Spicer, Faraday Society, 82 Victoria Street, SW 'Dear Sir, In reply to your letter of the 6th instant, I have instructed Messrs Harrison & Sons, our printers, to prepare an electro of the block illustrating Dr T M Lowry's paper in the Philosophical Transactions [of the Royal Society]. The cost of making the electros will be only trifling; it is not the practice of the Society to lend original blocks.' 8 July 1910