Cheesecloth Keeps Mosquitoes Out of Cisterns
This file appears in: Mosquitoes and Yellow Fever

These cisterns have been covered with cheesecloth in order to prevent mosquitoes from breeding there while still allowing them to collect water. In addition to cheesecloth, some citizens poured petroleum on top of the water in their cisterns. Since the two do not mix, the oil would float, preventing mosquitoes from landing without polluting the water supply.
This file appears in: Mosquitoes and Yellow Fever
Mosquitoes and Yellow Fever
As you stand in front of the fountain in Jackson Square or walk through the French Quarter peering into courtyards and hearing the faint trickle and splash of a fountain, think about the bugs that…