NOTES 171 



Sediments from the Tyrrhenian Sea," in H. Pettersson, 

 "Three Sediment Cores from the Tyrrhenian Sea," Medd. 

 Oc.Inst., 15 (1948), 47-72. 



Chapter 7. Recent Investigations on the 

 Stratigraphy of Deep-Sea Sediments 



1. G. S. Arrhenius, Fascicle I of Sediment Cores from the 

 East Pacific, Reports, 5 (1952). 



2. W. F. Libby, E. C. Anderson, and J. R. Arnold, "Age De- 

 termination by Radiocarbon Content: World-wide Assay 

 of Natural Radiocarbon," Science, 7(99 (1949), 227-8. 



3. R. Revelle, "Shipboard Report of 'Capricorn' Expedition," 

 unpublished manuscript in custody of Scripps Institution 

 of Oceanography, ref. no. 53-15 (1953), p. 36. 



4. W. R. Riedel, "Tertiary Radiolaria in Western Pacific Sedi- 

 ments," Medd. Oc. Inst., 19 (1952), 24 pp. 



5. R. W. Kolbe, "Diatoms from Equatorial Pacific Cores," in 

 Fascicle II of Sediment Cores from the West Pacific Ocean, 

 Reports, 6 (1954). 



6. H. Pettersson and H. Rotschi, "The Nickel Content of 

 Deep-Sea Deposits," Geochimica et Cosmochimica Acta, 

 2 (1952), 81-90. 



Chapter 8. Deep-Sea Radium and the 

 Geochronology of the Ocean Floor 



1. F. Hernegger and Berta Karlik, "Uranium in Sea-Water," 

 Medd. Oc. Inst., 12 (1935), 15 pp. See also E. Foyn, Berta 

 Karlik, H. Pettersson, and Elizabeth Rona, "The Radio- 

 activity of Seawater," op. cit., 2 (1939), 7. 



