that an intoxicated fellow was thrown out, and directly upon me. At the very instant I hit the poor fellow a hard blow on the ear. I regretted the deed immediately, the more so as the assaulted man bemoaned his misfortune, “inside they throw him out, outside they box his ears.” Suppose that I had at that time burst the man’s ear-drum or otherwise damaged him heavily. It would have been a criminal matter and I doubt whether anybody would have believed that it was a “reflex action,” though I was then, as to-day, convinced that the action was reflex. I didn’t in the least know what was going to happen to me and what I should do. I simply noticed that something unfriendly was approaching and I met it with a defensive action in the form of an upper-cut on the ear. What properly occurred I knew only when I heard the blow and felt the concussion of my hand. Something similar happened to me when I was a student. I had gone into the country hunting before dawn, when some one hundred paces from the house, right opposite me a great ball rolled down a narrow way. Without knowing what it was or why I did it I hit at the ball heavily with an alpenstock I carried in my hand, and the thing emerged as two fighting tomcats with teeth fixed in each other. One of them was my beloved possession, so that I keenly regretted the deed, but even here I had not acted consciously; I had simply smashed away because something unknown was approaching me. If I had then done the greatest damage I could not have been held responsible--_if_ my explanation were allowed; but _that_ it would have been allowed I do not believe in this case, either. A closer examination of reflex action requires consideration of certain properties, which in themselves cannot easily have criminal significance, but which tend to make that significance clearer. One is the circumstance that there are reflexes which work while you sleep. That we do not excrete during sleep depends on the fact that the faeces pressing in the large intestine generates a reflexive action of the constrictors of the rectum. They can be brought to relax only through especially powerful pressure or through the voluntary relaxation of one’s own constrictors.