Status message
map
1930s, 1960s
13175_24872_population_growth19
Medical and demographic information is used to explain that population…
1960s
13175_24872_population_growth6
Medical and demographic information is used to explain that population…
1940s
13171_4341_polio_diagnosis_and_management2
View of chart with two separate graphs on notifications of outbreaks of…
1960s
13173_40681_projection1
Footage of female teacher showing classroom projection equipment.Clip…
1960s
13173_40681_projection3
Voiceover discusses the slides that were made from a negative produced…