U.S. Public Health Service: Demonstration unit- residual spraying for flies
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| Date uploaded | 2019-11-13 |
| Tags | nationallibraryofmedicine, imagesfromthehistoryofmedicine, ihm, historyofmedicinedivision, photoprint, “uspublichealthservice”, “sprayingforflies”, “printsandphotographs”, pp, nlm, hmd, “nationalinstitutesofhealth”, nih, publicdomain, archivesofmedicine, nlmdigitalcollection |
| Visibility | public |