The author divides the stigmata of degeneration into four classes—anatomical, physiological, psychological, and sociological. The first group he discussed in an earlier paper contributed to the same journal, and the third and fourth groups he proposes to deal with later on. The present paper is devoted to the physiological group, and is, as the author expressly points out, a simple catalogue of the several functional disorders which, for good, bad, or indifferent reasons, various observers have brought into the wide net of “dégénérescence.” It is needless to add that the catalogue is a long one, seeing that some authors claim for the degenerate a monopoly of tubercular diseases and of post-nasal adenoids; and one expansionist even goes so far as to insist that every departure from the left occipito-anterior presentation in childbirth is to be accounted a stigma. The paper is followed by a useful list of the literature on the subject.