Object Lessons on the Human Body / A Transcript of Lessons Given in the Primary Department of School No. 49, New York City

by Sarah F. Buckelew; Margaret W. Lewis

5. If I would have healthy lungs,

I must breathe pure air,

I must live in the sunlight,

I must keep my body clean,

I must wear loose clothing,

I must wear clean clothing,

I must sit and stand erect,

I must keep all parts of my body warm,

I must not change my winter clothing too early in the spring,

I must avoid draughts of cool air,