The samples or models of rat-proofing and garbage-removal ordinances
here given were prepared by the United States Public Health Service
as a result of its experience in combating bubonic plague in several
coastal cities. They have, in substance, been adopted and put into
practice by a number of cities and have been found practicable.
They should be applicable to any city after necessary allowance and
possible changes have been made to conform to local conditions and
constitutional considerations.