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Titles
- Sanitary engineering: Streets after paving for mosquito control in Colon, Panama2
- Sanitary engineering: Streets before paving for mosquito control in Colon, Panama1
- Sanitary engineering: View of street in Colon, Panama before street paving to prevent mosquito problems1
- Shelter for sunstroke victims: the Merry Widow and her hat, on "hospital detail"1