There is no lack of evidence that a subconscious measurement of the lapse of time takes place. For example, domesticated animals are often strikingly punctual; some idiots manifest an accurate faculty for time measurement; many men can judge the hour correctly without looking at a clock; others can wake at a predetermined minute; and, as a rule, post-hypnotic suggestions take effect with startling and cryptic punctuality. Investigators are agreed that time-gauging is much more accurate during sleep and trance than in the waking state—in other words, is now more a subliminal than a supra-liminal faculty.