This stage quickly passes away, and is followed by one of intoxication, in which there is a great inclination to lie down, although there is never any tendency to sleep. The pupils are now widely dilated, but act sluggishly to light. On attempting to walk, the gait closely resembles that in alcoholic intoxication, and in all bodily movements requiring precision, the incoördination is evident. The body is generally in a tremulous condition, the tremors showing well when the attention is fixed on anything held in the hand. Reflexes over the whole body are much increased, including the skin reflexes, although there is considerable blunting of painful and tactile sensation. Twitching of muscles occurs in various parts of the body, especially noticeable in the face, and there is a curious feeling as if the face, lips, tongue, etc., were much swollen. As in _cannabis indica_, time is over-estimated, possibly as a result of the rapid flow of ideas[8] and the inability to fix the attention. Perception of space is also modified,[9] on one occasion giving the impression that the ground sloped away in all directions. Perception may be considerably delayed; for example, one may look at a person one knows well, and it is only after scanning his features for what appears to the experimenter a considerable time, that recognition occurs;[10] it is possible, however, that this may be explained by the increased time-relation. The attention cannot be fixed, as the least stimulus is sufficient to alter the train of thought; thus it was found impossible to fix the attention on a book, and a subsequent examination of notes attempted during intoxication showed incoördination both as regards language and writing. On two occasions when deeply under the influence of the drug, there was an indescribable feeling of dual existence; thus after sitting with closed eyes subjectively examining the color visions, on suddenly opening them for a brief space one seems to be a different self, as on waking from a dream we pass into a different world from that in which we have been. This may be to some extent comparable to the rhythmical rise and fall of the “physical waves” in Indian hemp intoxication.[11] But by far the most remarkable of these subjective phenomena are the sensory hallucinations,[12] especially visual. These arise gradually, and are at first only seen with closed eyes.... The visions rapidly become more marked, until on closing the eyes a regular kaleidoscopic play of colours can be seen with either eye, precisely the same; hence the condition must be central.