168 THE OCEAN FLOOR 



the Origin of the Earth's Plan," Bull. Geol. Soc. Am., 21 

 (1910), 179-226. 



Chapter 2. Envisaging the Past and Future 



1. W. W. Rubey, 'Geologic History of Sea Water," Bull. 

 Geol. Soc. Am., 62 (1951), 1111-47. 



2. R. Revelle, in an unpublished paper delivered before a 

 meeting of the British Association for the Advancement 

 of Science, in Liverpool, Sept., 1953; and in personal com- 

 munications to the author. 



3. V. I. Vernadskii, Geochemie in ausgewdhlten Kapiteln, tr. 

 E. Kordes, Leipzig, 1930. 



Chapter 3. Exploring the Ocean Floor 



1. T. Noldeke, Beitrcige zur Geschichte des Alexander-Ro- 

 mans, Wien, 1890. 



2. L. F. Marsigli, L'Histoire physique de la mer. Academic 

 Royale des Sciences, 1735. 



3. E. Forbes, Report on the MoUusca and Radiata of the 

 ^gean Sea, London, 1843. 



4. G. Schott, Geographie des Atlantischen Ozeans (Ham- 

 burg, 1926), p. 117. 



5. J. Murray and J. Hjort, The Depths of the Ocean, Lon- 

 don, 1912. 



6. Wissenschaftliche Ergebnisse der Deutschen Atlantischen 

 Expedition auf dem Forschungs- und Vermessungsschiff 

 "Meteor" 1925-1927, Berlin, 1938-39. 



7. H. Pettersson and B. Kullenberg, "A Vacuum Core-Sam- 

 pler for Deep-Sea Sediments," Nature, 145 (1940), 306. 



8. B. Kullenberg, "The Piston Corer," Svenska Hydrogra- 



