The minute book of the 1879-81 Select Committee on the Origin, Introduction, and Prevention of Epidemic Diseases also contains minutes of a joint session of both House and Senate committees on epidemics and of a joint House-Senate subcommittee appointed to visit Memphis and other places to study causes and prevention of yellow fever and cholera (45A-F37.3, 46A-F38.1, 46A-H26.1, 48A-F45.1, 48A-H35.