"Of course," said Walkirk, "under present circumstances that would be impossible; but suppose, for instance, you take me with you to those houses you are building, that you show me what has been done and what you intend to do, and that you let me make myself familiar with the whole plan and manner of the work. This would be easy for me, for I have superintended house-building; and although I am neither a plumber, a mason, a carpenter, a paper-hanger, or a painter, I know how such people should do their work. Therefore, if you should be unable to attend to the matter yourself,--and in such case only,--I could go and see how the work was progressing; and this I could do with regard to your farm, or any other of your business with the details of which you should care to have me make myself familiar,--always remembering that I should not act as your regular agent in any one of these affairs, but as one who, when it is desirable, temporarily takes your place. I think, Mr. Vanderley, that it would be of advantage to you to consider my proposition." I did consider it, and the next evening I engaged Chester Walkirk as an under-study. VII. MY BOOK. In order to be at hand when I might need him, Walkirk took up his residence at the village tavern, or, as some of us were pleased to call it, the inn. To make him available when occasion should require, I took him with me to the scene of my building operations and to my grandmother's farm, and he there showed the same intelligent interest that he gave to my evening recitals. I had no difficulty in finding occupation for my under-study, and, so far as I could judge, he attended to the business I placed in his hands as well as I could have done it myself; indeed, in some instances, he did it better, for he gave it more time and careful consideration. In this business of supplying my place in emergencies, Walkirk showed so much ability in promoting my interests that I became greatly pleased with the arrangement I had made with him. It was somewhat surprising to me, and I think to Walkirk, that so many cases arose in which I found it desirable that he should take my place. I was going to look at a horse: some visitors arrived; I sent Walkirk. There was a meeting of a scientific society which I wished very much to attend, but I could not do that and go to a dinner party to which I had been invited on the same evening; Walkirk went to the meeting, took notes, and the next day gave me a full report in regard to some particular points in which I was interested, and which were not mentioned in the short newspaper notice of the meeting.