(b) A second class of post-hypnotic phenomena, namely, those of suggested actions carried out by the subject more or less automatically, in a sort of absent-minded way, without his being aware of what he is doing. The subject is directed in hypnosis to perform such or such an action after being awakened. Sometimes the suggested action is performed consciously, the suggested ideas with their impulses arising in his mind, but without his knowing why. In other instances, however, he performs the action automatically without being consciously aware at the moment that he is doing it, his attention being directed toward something else. Such actions must be performed by some kind of subconscious processes instigated by the ideas suggested in hypnosis. Now hypnotic and other technically evoked memories sometimes reveal the conscious content of the processes involved in both classes of phenomena. For instance: two intelligent subjects, who have been the object of extensive observations on this point, are able to recall in hypnosis the previous occurrence of coconscious ideas of a peculiar character. The description of these ideas has been very precise and has carried a conviction, I believe, to all those who have had an opportunity to be present at these observations that these recollections were true memories and not fabrications.[82] The statements of these subjects is that in their own cases, under certain conditions of everyday life, coconscious ideas _of which the principal consciousness is not aware_ emerge into the subconscious, persist for a longer or shorter time, and then subside to be replaced by others. So long as the conditions of their occurrence continue these coconscious ideas keep coming and going, interchanging with one another. Sometimes these ideas take the form of images, or what is described as visual “pictures.” When the conditions are those of the subconscious solution of a mathematical calculation then the same “pictures” occur and take the form of the figures involved in the calculation; the figures come and go, apparently add, subtract, and multiply themselves until the final result appears in figures. An example will make this clear.