Copy letter from Herbert Rix, to Messrs Edkins & Company, 280 High Holborn, W.C. 'I am afraid that when I gave you the order for Dr Spencer's blocks I said nothing about size, but you will understand that they are to go in the text of our "Phil. Trans." ['Philosophical Transactions of the Royal Society'], the type of which measures 8 1/2 x 6. Some of the blocks may have to be divided, and in these cases it might be safe to consult the Author. HR'. 1 May 1894