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18
Consideration of the above summary of tenements
yields the following conclusions:—
For tenements of 5 rooms and less, the mean
number of persons per room increases inversely as
the number of rooms per tenement, and directly as
the mean rental per room.
Less constant is the relationship between rental
per person and rental per room, but approximately
it may be stated that the mean rental per person
increases directly as the mean rental per room.
It is generally true of all except tenements of 3
rooms that with each successive increment of rent
there is a corresponding rise in the mean number of
persons per room.
The exception is not improbably due to the fact
that a large number of families are forced by their
numbers into such of the 3 roomed tenements as can
be secured at a tenement rental not exceeding that
charged for tenements of 2 rooms. The cheaper of
the 3 roomed tenements thus become disproportionately
crowded, in contrast to the rule that crowding
tends to increase in each class of tenement with the
increase of room rental.
Increased rental per room, as I have pointed
out, is accompanied by increased rental per head,