Among the various elements of accuracy, that of statement, as well as of observation, is of course of the utmost importance, yet is too apt to be overlooked. Even those who are careful in their actual observing, may in their report of their observations be much less so. Words are misleading and inadequate things, and the tricks they have played with scientific accuracy have been deplorable. There is the strange ease of mere misstatement. There is the natural tendency to overstate. There is the tendency to clarify verbally what in fact is more or less confused or the opposite difficulty of making verbally clear what the senses may perceive with singular lucidity. Here again Darwin is constantly on the watch. Memory is misleading and accounts based upon it are apt to be untrustworthy: ‘I foolishly trusted to my memory, and was much annoyed to find how hasty and inaccurate many of my remarks were.’[26] Words are inadequate, blundering, they will not render the finer, more delicate shades: ‘A difference may be clearly perceived, and yet it may be impossible, at least I have found it so, to state in what the difference consists.’[27] One cannot be too careful, too scrupulous, about one’s statements, or too anxious to correct them, when one has made a mistake. And Darwin gets up in the middle of the night and arouses a slumbering friend to explain that, after all, he felt the sense of the sublime more fully in the forests of Brazil than on the top of the Cordilleras.[28] When one is so mistrustful of one’s own records one cannot always accept implicitly the narratives of others. Darwin is eager to get the accounts of other observers, and is singularly deferential to their opinions. At the same time he is gently and watchfully critical, and knows well how to estimate the ability of those with whom he deals. One of the most interesting remarks upon the skill of his methods in obtaining information, and one that every one who reads him carefully will confirm, is Sir William Turner’s comment upon ‘his care in avoiding leading questions.’[29]