3. To study in various cities and towns the causes of congestion of population and bad housing conditions and the methods by which such conditions may best be remedied.
4. To aid all local housing committees by advice and direction and to encourage the formation of such committees where they do not at present exist.
5. To act as a clearing house of information for such agencies and committees and to furnish advice and suggestions to those interested in housing reform and generally to promote popular interest in the subject.
6. To aid in the enactment and enforcement of laws that will
a—Encourage the erection of proper types of dwellings;
b—Secure their proper maintenance and management;
c—Prevent the erection of unfit buildings;
d—Bring about a reasonable and practical improvement of the older buildings;
e—Secure reasonable, scientific and economical building laws.
7. To aid in defending such laws when enacted and in correcting and amending them from time to time to suit changing conditions.