worked her way right up to me, and used to perch herself beside me whenever I worked. In this position she used, still without ever obtruding her presence in any way, to make herself very useful by holding my pens, test-tubes, or bottles and handing me whatever I wanted, with never-failing sagacity. By ignoring the fact of her being a human being, and looking upon her as a useful automatic machine I accustomed myself to her presence so far as to miss her on the few occasions when she was not at her post. I have a habit of talking aloud to myself at times when I work, so as to fix my results better in my mind. The girl must have had a surprising memory for sounds, for she could always repeat the words which I let fall in this way, without, of course, understanding in the least what they meant. I have often been amused at hearing her discharge a volley of chemical equations and algebraic symbols at old Madge, and then burst into a ringing laugh when the crone would shake her head, under the impression, no doubt, that she was being addressed in Russian.
She never went more than a few yards from the house, and indeed never put her foot over the threshold without looking carefully out of each window in order to be sure that there was nobody about. By this I knew that she suspected that her fellow-countryman was still in the neighbourhood, and feared that he might attempt to carry her off. She did something else which was significant. I had an old revolver with some cartridges, which had been thrown away
