text:  "Well " he says to himself "I make a certain sum by farming my land as it is; I have here fifty pounds of ready money could I make more profit if I were to lay this money out in draining it?--would it be a good speculation?" He calculates the cost of draining and the probable return of profit and the result is apparently that he _can_ make more profit by this use of his money than by any other way in which he could employ it