This long series of questions with careful introspection tests upon the content of consciousness constituted then my main research in the field of stuttering. Perhaps further details in explanation of the questions chosen is unnecessary. Three or more questions on introspection were asked at each test. 4. FINAL DETAILED RESULTS are found in the following conclusions as drawn from 1440 answers. In our average conversation a visual picture is created before we begin utterance. Severe stutterers never visualize at all. In direct proportion that these cases become less severe, does visualization increase in frequency, strength and continuation in consciousness before and during utterance. When severe stutterers are free from spasms they visualize, and when they stutter they do not visualize. When mild cases are free from spasms, they visualize, and when they stutter they fail to visualize. In a word, when visualization is present stuttering is absent; when visualization is absent stuttering is present. This is true not only of EACH UTTERANCE, in most cases, but is true of severe as well as mild forms as a whole. Stutterers gain in visualization as they approach cure. For past, present and future memories: visualization is slightly more frequent for past and future. Therefore stuttering is an indication of absent or weak visualization either in isolated words, occasional stutterers, mild stutterers or the severest type, either before or during speech, or both. The slump, then, in personality which I showed last year as the main thing in stuttering as its cause and condition, is thus found by further psychological analysis, to be a slump in the power to consciously visualize. By personality I mean as mentioned above the composite of collaborative activities that lie between the low sensory repository areas and the low motor expression areas. In other words, personality includes all those collaborative processes that lie between the sensory intake areas and the motor output areas; in a word, any unexpressed use the mind makes of its intake. Conscious visualization is a part of personality processes, then. In my last year's paper([1]) the whole matter was left vague. Here something definite and constant is found. In other words the psychoanalytical method revealed no conscious subconscious cause. Granted there is room here to "interpret" (or create according to Freudian mechanisms) a definite subconscious complex, a step which I could not feel justified in taking; I leave this to better psychoanalysts than I. For me to twist stutter phenomena to comply to a theoretical complex is unscientific to say the least. But the psychological method--as represented by this paper--shows a definite constant cause for all the phenomena of stuttering. FAULTY VISUALIZATION EXPLAINS ALL PHENOMENA: Upon this basis of an involved visualization all the intricate phenomena of stuttering may be explained. Let us take some of these up in detail.