After luncheon we proceeded with our tour of the tramway system. By this means I got a good view of the exterior appearance of the houses of the various classes. It confirmed the impression I had gained from the look-out tower, except in one respect. The houses of the well-to-do looked as if they had all been designed by the same school of architects, and except that they differed in size they might have been turned out by machinery. The houses of the rest of the population were 'standardised' to an even greater degree. The dwellings of the Sixth Class are really blocks of small flats of a standard size; those of the Fifth Class are similar, except that the rooms are a little larger and there are more of them. One curious fact came to light in the course of Conductor Prigge's explanation of the housing system. It seems that the Births Department determines the number of children each family is expected to have within a given period of years, and the houses are distributed accordingly. Thus a family in the Fifth Class which is due to have, let us say, four children within the next seven years, is assigned a flat of five rooms. Then, if the same family is due to have two more children within the next five years, they move into a house with seven rooms. Persons in the first grade of the Fifth Class are allowed to take a flat with more rooms on payment of a special rate or tax. Apparently there is very little choice of houses. As all the houses of a certain grade are practically alike, if a tenant wishes to move to another street he has to furnish valid reasons; and it is not easy to furnish reasons satisfactory to the authorities. Besides, the number of houses or flats is very closely proportioned to the number of tenants, and there are never many vacant houses. The members of the Third and higher classes own their own houses, and can therefore change their residences by purchasing or exchanging. By special privilege members of the Fourth Class can obtain permission to buy their houses, but as these are mostly flats they are usually rented from the municipality. CHAPTER IV PROFESSOR PROSER-TOADY'S LECTURE