5. Very frequently the nocturnal frights (pavor nocturnus of adults) usually combined with anxiety, dyspnoea, perspiration, etc., is nothing other than a variety of the attack of anxiety. This disturbance determines a second form of insomnia in the sphere of the anxiety neurosis. Moreover I became convinced that even the pavor nocturnus of children evinces a form belonging to the anxiety neurosis. The hysterical tinge and the connection of the fear with the reproduction of appropriate experience or dream, makes the pavor nocturnus of children appear as something peculiar, but it also occurs alone without a dream or a recurring hallucination. 6. “_Vertigo._”—This in its lightest forms is better designated as “dizziness,” assumes a prominent place in the group of symptoms of anxiety neurosis. In its severer forms the “attack of vertigo,” with or without fear, belongs to the gravest symptoms of the neurosis. The vertigo of the anxiety neurosis is neither a rotatory dizziness nor is it confined to certain planes or lines like Menier’s vertigo. It belongs to the locomotor or coordinating vertigo, like the vertigo in paralysis of the ocular muscles; it consists in a specific feeling of discomfort which is accompanied by sensations of a heaving ground, sinking legs, of the impossibility to continue in an upright position, and at the same time there is a feeling that the legs are as heavy as lead, they shake, or give way. This vertigo never leads to falling. On the other hand, I would like to state that such an attack of vertigo may also be substituted by a profound attack of syncope. Other fainting-like states in the anxiety neurosis seem to depend on a cardiac collapse. The vertigo attack is frequently accompanied by the worst kind of anxiety and is often combined with cardiac and respiratory disturbances. Vertigo of elevations, mountains and precipices, can also be frequently observed in anxiety neurosis; moreover, I do not know whether we are still justified in recognizing a vertigo “a stomacho laeso.”