Copy letter from A H White for Robert William Frederick Harrison, to Miss M P Fitzgerald In response to Fitzgerald's request the Society will print an erratum slip for her paper, of which a proof will be sent. Hesitates to charge the printers with carelessness in such a difficult case, where the paper is intelligible only by specialists. The Society can only express its regret. Explains again the it is not the Society's practice to send a proof, she did not request one, and had seen a revise in slip. 7 September 1906