Historically, three methods have been used in studying the emotions. Casual individual introspection is the earliest and is consequently the basis for most of the literature. Bain (2) and Ribot (16) were among the first to employ this method extensively. Observations of the behavior of normal and abnormal persons have given some results. The questionnaire method used by Dr. Hall (11) has shown the wide range of objective reactions and objects of anger. Both anger and fear are deep rooted psychic strata. Introspections reveal motives of selfish, unsocial and unlawful character, springing from a level lower than the social man. All observers have been quite frank in giving the full introspections, even when their most private and personal matters were concerned. Where illustrative material is used it has been necessary to remove the personal element, as in many instances, others besides the observer were concerned. This revision has been the work of the writer. The essential psychological factor is unchanged and the words of the observers are used as nearly as possible. The twelve persons will be called by the first twelve letters of the alphabet, and other persons named in the introspections will be called X. Y. and Z. Ten of the observers were graduate men students of psychology. Seven of these had had considerable experience in introspection under controlled laboratory conditions. Most of the illustrative data will be taken from the observations of A. B. C. D. E. F. and G. who are the most experienced observers.