The next den we entered was small, crowded, and dirty. The price was only ten cents. But the third den was the largest and decidedly the most interesting of any that we saw. Like the others, it was situated in a prosperous section of the Taiku Road, with its red light conspicuously displayed over the door. From the facts that it was frankly open for business and that not the slightest concern was shown at our entrance, it seemed fair to believe that the keepers had no fear whatever of publicity or of the law. Even when we announced ourselves to be investigators, our questions were answered cheerfully and fully, and the man who escorted us from room to room was apparently proud of the establishment. The couches were not all occupied, but I counted thirty-five men sitting or reclining on them. One man had a child with him, a girl of some six or eight years of age, and when he had prepared his pipe and smoked it he permitted her to take a whiff or two. In a rear room we saw four women smoking with the men. The price of a smoke in this den was twenty-five cents. I do not know how many opium dens were open for business in the French concession on this particular April 23d, 1907, but of those that were open I personally either entered or at least saw fifteen or sixteen, and that without attempting anything in the nature of an exhaustive search. In the Italian and Russian concessions I found about sixty dens open, mostly of a very low grade. But the worst of the concessions, in this regard, was the Austrian. Lying nearest to the native city, it had profited more largely than any of the others by the native prohibition. It seemed also to have the largest Chinese population; indeed, in appearance it was more like the quaint old Chinese city than any of the other foreign municipalities.