'My dear Father and Mother, Your letters received with thanks. My book is being printed by Thorne, Stiff, and Payne, among other people. Is that not appropriate for a neuralgic author? The pain has decamped once more and gone to my shoulder blade where it hurts worse; but is out of the way of the lungs anyway. I had another worry with the doctor today; he gives me a clean bill; but says I must take care for a little [�]. What does my father mean by the "references to the book"? What book? and where? And how? And what am I to do with them? [�] Do explain about the "references to the book" [�].'