3. This is not the only way in which the anxiousness, usually latent but constantly lurking in consciousness, can manifest itself. On the contrary it can also suddenly break into consciousness without being aroused by the issue of an idea, and thus provoke an attack of anxiety. Such an attack of anxiety consists of either the anxious feeling alone without any associated idea, or of the nearest interpretation of the termination of life, such as the idea of “sudden death” or threatening insanity; or the feeling of anxiety becomes mixed with some paresthesia (similar to the hysterical aura); or finally the anxious feeling may be combined with a disturbance of one or many somatic functions, such as respiration, cardiac activity, the vasomotor innervation, and the glandular activity. From this combination the patient renders especially prominent now this and now the other moment. He complains of “heartspasms,” “heavy breathing,” “profuse perspiration,” “inordinate appetite,” etc., and in his description the feeling of anxiety is put to the background or it is rather vaguely described as “feeling badly,” “uncomfortably,” etc. 4. What is interesting and of diagnostic significance is the fact that the amount of admixture of these elements in the attack of anxiety varies extraordinarily, and that almost any accompanying symptom can alone constitute the attack as well as the anxiety itself. Accordingly there are rudimentary attacks of anxiety, and equivalents for the attack of anxiety, probably all of equal significance in showing a profuse and hitherto little appreciated richness in forms. A more thorough study of these larvated states of anxiety (Hecker) and their diagnostic division from other attacks ought soon to become the necessary work for the neuropathologist. I now add a list of those forms of attacks of anxiety with which I am acquainted. There are attacks: (_a_) With disturbances of heart action, such as palpitation with transitory arrythmia, with longer continued tachycardia up to grave states of heart weakness, the differentiation of which from organic heart affection is not always easy; among such we have the pseudo-angina pectoris, a delicate diagnostic sphere! (_b_) With disturbances of respiration, many forms of nervous dyspnoea, asthma-like attacks, etc. I assert that even these attacks are not always accompanied by conscious anxiety; (_c_) Of profuse perspiration, often nocturnal; (_d_) Of trembling and shaking which may readily be mistaken for hysterical attacks; (_e_) Of inordinate appetite, often combined with dizziness; (_f_) Of attack-like appearing diarrhoea; (_g_) Of locomotor dizziness; (_h_) Of so called congestions, embracing all that was called vasomotor neurasthenia; and, (_i_) Of paresthesias (These are seldom without anxiety or a similar discomfort).