In the paper entitled "Spot Maps for Bacillary Dysentery and for Acute Epidemic Poliomyelitis" by Drs. George M. Lyon and Albert M. Price, in the transactions of the American Pediatric Society published in the August issue (Am. J. Dis. Child. 62:437, 1941), in the fourth, fifth and sixth paragraphs 1937 should read 1927.