1. Photoelectric measurements of the seasonal variations in daylight;Atkins,1938
2. A cubical photometer for studying the angular distribution of submarine daylight;Atkins;J. mar. biol. Ass. U.K.,1940
3. Relationship between Secchi disc readings and light penetration in Lake Huron;Beeton;Trans. Am. Fish. Soc.,1958
4. Light penetration in the western North Atlantic and its application to biological problems;Clarke;Rapp. P.-v. Réun. Cons. perm. int. Explor. Mer,1936
5. Variation in transparency and bioluminescence on longitudinal transects in the western Indian Ocean;Clarke;Bull. Inst. océanogr. Monaco,1964