1. [Letter dated July 30, 1880, proposing an International Sanitary Conference to meet at Washington, and enclosed Memorandum dated July 29, 1880] Author(s): Evarts, William Maxwell, 1818-1901, author Publication: Produced: Washington : [producer not identified], 1880 Subject(s): Communicable Disease ControlInternationalityCongresses as TopicInternational Sanitary Conference