American Geographical Society of New York. Companion text: Map of the world distribution of poliomyelitis / Jacques M. May. New York, NY: American Geographical Society of New York. Geographical review. Vol. 40 no. 4. 1950. 646-648 pp. Alternate title on verso: World distribution of poliomyelitis 1900-1950. On upper right margin: Atlas of distribution of diseases - plate 1. Maps: [North America] -- [Europe] -- [Asia] -- [South America] -- [Africa] -- [Indonesia, Australia, and New Zealand]. To accompany: Geographical review, vol. 40, no. 4, 1950, pl.I. Text availabe internet web site: http://www.jstor.org/journals/00167428.html or Call no.: 1000.122.2.