The reason why the man at the moment of the accident experienced the terrorizing thoughts that he did, and why he continued to experience them, must be sought in associated conserved experiences of his past. These experiences were the psycho-genetic factors. It would take us too far out of the way to consider this problem, which belongs to the obsessions, at this time, but, as I have touched upon it, I may say in passing that the accident would have awakened no sense of terror and no emotional shock if a _psychological torch_ had not already been prepared. This torch was made up of ideas previously imbibed from the social environment and made ready to be set aflame by the match set to it by the accident. In the unconsciousness of this man were written in neurographic records the dangers attending accidents of this kind and dangers which still threatened his present and future. Likewise the _insistence_ of the memory can be related to a setting of associated thoughts which gave meaning to his perception of himself as one affected, as he believed, with a serious injury threatening his future. His fear was also, therefore, a fear of the present and future. Thus not only the experiences of the accident itself became organized into a group and conserved as a memory, but were organized with memories of still other experiences which stood in a genetic relation to them. If it were necessary I could give from my personal observation numerous examples of this mode of organization of complexes through emotional experiences and of their reproduction as automatic memories. An historical example of complex-organizing of this kind is narrated in Tallentyre’s delightful life of Voltaire. Toward the end of Voltaire’s famous residence at the court of Frederick the Great, as the latter’s guest, one of those pestiferous friends who cannot help repeating disagreeable personal gossip for our benefit swore to Voltaire to having heard Frederick remark, “I shall want him (Voltaire) at the most another year; one squeezes the orange and throws away the rind.” From that moment a complex of emotional ideas was formed in Voltaire’s mind, that, do what he would, he could not get rid of. He wrote it to his friends, thought about it, dreamed about it; he tried to forget it, but to no purpose; it would not “down”; the rind kept constantly rising. It brought with it every memory of Frederick’s character and actions that fitted the remark.