THE
COST OF SHELTER.


By
ELLEN H. RICHARDS


Instructor in Sanitary Chemistry,
Massachusetts Institute of Technology.


1905.




THE HOUSEHOLD EXISTS FOR ONE OR MORE OF THE FOLLOWING REASONS:


Two or more persons form an alliance

(a) for protection against the outside world;

(b) for protection against the outside world and for the rearing of
children;

(c) for the greater gain in convenience which the common life can give
over that of single effort;