Erratum
In the report "Staining of blue-sensitive cones of the macaque retina by a fluorescent dye" by F. M. de Monasterio et al. (11 Sept., p. 1279), the calibration bar, referred to in the legend of Fig. 2, was omitted; the bar corresponds to 5 mm of the printed page. In the same report, the labeling of Fig. 3C (bottom right panel of Fig. 3, p. 1280) is missing. Its ordinate axis should read "Percentage," and the ordinate axis marks should read (from top to bottom) "13, 11, 9, 7, 5."