| Tags |
photographs, “stillimage”, “printsandphotographs”, pp, nationallibraryofmedicine, nlm, imagesfromthehistoryofmedicine, ihm, historyofmedicinedivision, hmd, “nationalinstitutesofhealth”, nih, water, potable, suitablefordrinking, drinkableliquids, watertreatmentsystem, layingpipe, villagewatersystem, ditch, manuallabor, dirt, shovel, mound, dig, watersupply, sterilizingwater, drinkingbehaviorwater, sanitaryengineering, watersterilization, distill, microbiology, waterdistributionsystem, waterdistillationmechanisms, publicdomain, h20, archivesofmedicine, nlmdigitalcollection
|