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Evaporation rate vs. log p for sodium chloride
concentration of sea \vater is noted. T h e inference would require that the presence of monomolecular films govern the salt concentration of the ocean and tend to stabilize it near 3.5y6. S o positive information on the possible presence of such films over \vide areas of the ocean is available, although recently such a film from biological sources has been suggested. Neither is it possible 10 state ivhether the salt content of the ocean? has been constant over lengthy periods: since the first general analyses ivere made by Dittmar a n d his collaborators of the H..Zi.S. Chnilenger in 1884 (2). Literature Cited
(1) Archer. 11. J., La Mer, V. K., J . Phys. Chem. 59, 200 (1955). (2) Dittinar. \V.. “Report on Researches into the Composition of Sea \Vater, Collected by H..ZI..S. Chnlleng~r,” Challenger Reports, Physics and Chem., Vol. I, pp. 1-251, 1884. ( 3 ) Dressler. I
