ERRATA 3, D. MORELAND: Selectivity in two retinal staining techniques. Vision Res. 10,205-206 (1970). The following corrections are to be noted. Page 205, Fig. 1: Delete both the legend and the inset caption. Ordinate should read: Number of cells. Abscissa should read: Dendritic field diameter Q. Legend should read: ~~~butio~ of 160 dendritic field diameters among multi-dents type of ganglion cell seen in peripheral retina. The black bars indicate the contribution from methylene blue stained material and the white bars the contribution from silver stained material. From Leicester and Stone. Page 205, third paragraph: For STOW read STONE’s Page 206, Fig. 2: Insert points (2.836, 7.10) and (Z-836, 6.91) respectively from the distributions M and N.
MOTOHIKO MURAKAMI and WILLIAM L. PAK: Intraeeflularly recorded early receptor potential of the vertebrate photoreceptors. Vision Res. 10,965-975 (1970). Page 968: Colour plate Fig. 3 (on facing page): The colour plates should be inverted. Figure 3(a) should read 3(b) and vice versa.
G. S. JAMEWNand H. D. FISHER:Visual discrimkations in the harbour seal Phocu ~i~~~, above and below water. VisionRes. 30,1175-1180 (1970).
Page 2, line 2 and abstract: The values of light intensity should read: 15*9-20*7 candela/m2, not 284-369 candelajm2. Page 4, line 10: 85 candela/m2 should be changed to 48 candela/m2.