A bureau of child hygiene; co-operative studies and experiments by the Deparment of health of the city of New York and the Bureau of municipal research.

Public Domain Mark

You can use this work for any purpose without restriction under copyright law. Read more about this licence.

Credit

A bureau of child hygiene; co-operative studies and experiments by the Deparment of health of the city of New York and the Bureau of municipal research. Public Domain Mark. Source: Wellcome Collection.

Provider

This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.