For the comfort of the suspicious, let me add that the relaxing of the conditions caused no change in the averages. In the first four series, drawn by my secretary, and sealed by him in envelopes, there were only five complete failures in thirty-eight tests, which is thirteen per cent; whereas in the 252 drawings made by me there have been 65 outright failures, which is nearly twice as large a percentage. Series number six, which was carefully sealed up, produced four complete successes, five partial successes, and no failures; whereas series twenty-one, which was not put in envelopes at all, produced no complete successes, three partial successes, and six failures. Perhaps I should explain that by a “series” I mean simply a group of drawings which were done at one time. It is my custom to make from six to a dozen and when Craig has finished with them, they are put into an envelope and filed away. I will add that Craig again and again begged me to sit and watch her work, so that I might be able to add my testimony to hers; I did so, watching tests both with envelopes and without, and assure you she left no loophole for self-deception. There was plenty of light to see by, and some of the most startling successes were produced under my eyes. I will add that no one could take this matter with more seriousness than my wife. She is the most honorable person I know, and she has worked on these experiments with rigid conscientiousness. _11_ I shall give a number of the successful drawings, and some of the partial successes, but none of the failures, for these obviously are merely waste. When I draw a cow, and my wife draws a star or a fish or a horseshoe, all you want is the word “Failure” and then you want to know the percentage of failures, so that you can figure the probabilities. Failures prove nothing that you do not already believe; if your ideas are to be changed, it is successes that will change them. I begin with series three, because of the interesting circumstances under which it was made. Late in the afternoon I phoned my secretary to make a dozen drawings; and then, after dark, Craig and I decided to drive to Pasadena, and on the way I stopped at the office and got the twelve sealed envelopes which had been laid on my desk. I picked them up in a hurry and slipped them into a pocket, and a minute or two later I put them on the seat beside me in the car.