Following the diagram of levels was a most informing chart arranged like a huge multiplication table. It gave after each level the words "permitted," "forbidden," and "permitted as announced," arranged in columns for each of the other levels. From this I traced out that as a chemist I was permitted on all the industrial, workmen's and intellectual levels, and on the Level of Free Women. I was permitted, as announced, on the Administrative and Royal Levels; but forbidden on the levels of military officers and soldiers' barracks, maternity and male and female schools. I found that as a chemist I was particularly fortunate for many other groups were given even less liberty. As for common workmen and soldiers, they were permitted on no levels except their own. The most perplexing thing about this system was the apparent segregation of such large groups of men from women. Family life in Germany was evidently wonderfully altered and seemingly greatly restricted, a condition inconsistent with the belief that I had always held--that the German race was rapidly increasing. Turning to my atlas index I looked up the population statistics of the city, and found that by the last census it was near three hundred million. And except for the few millions in the mines this huge mass of humanity was quartered beneath a single roof. I was greatly surprised, for this population figure was more than double the usual estimates current in the outside world. Coming from a world in which the ancient tendency to congest in cities had long since been overcome, I was staggered by the fact that nearly as many people were living in this one city as existed in the whole of North America. Yet, when I figured the floor area of the city, which was roughly oval in shape, being eight kilometres in breadth and eleven in length, I found that the population on a given floor area was no greater than it had been in the Island of Manhattan before the reform land laws were put into effect in the latter part of the Twentieth Century. There was, therefore, nothing incredible in these figures of total population, but what I next discovered was a severe strain on credence. It was the German population by sexes; the figures showed that there were nearly two and a half males for every female! According to the usual estimate of war losses the figure should have been at a ratio of six women living to about five men, and here I found them recorded as only two women to five men. Inspection of the birth rate showed an even higher proportion of males. I consulted further tables that gave births by sexes and groups. These varied somewhat but there was this great preponderance of males in every class but one. Only among the seventeen thousand members of Royalty did the proportion of the sexes approach the normal. Apparently I had found an explanation of the careful segregation of German women--there were not enough to go around!