SECT. 2] INSOLUBLES 303 



Bull, C A. and D. G. James, 1956. Dust in the stratosphere over Western Britain on 



April 3 and 4. 1956. Met. Mag., 85, 293-297. 

 Castaing, R. and K. Fredriksson, 1958. Analysis of cosmic spherules with an X-ray micro- 

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 Clerici, E., 1901. Le polveri sciroccali cadute in Italia nel marzo 1901. Boll. Soc. Geol. Ital., 



20, 169-178. 

 Clerici, E., 1902. Ancora sulle polveri sciroccali e suUe pallottole dei tufi vulcanici. Boll. 



Soc. Geol. Ital., 21, 39-41. 

 Darwin, C, 1846. An account of the fine dust which falls on vessels in the Atlantic Ocean. 



Q. J. Geol. Soc. London, 2, 26. 

 Ehrenberg, C, 1847. Passatstaub und Blutregen. Ahhandl. Konigl. Akad. Wiss. Berlin, 



269-460. 

 Ewing, M., B. C. Heezen and D. B. Erickson, 1959. Significance of the Worzel Deep Sea 



Ash. Proc. Nat. Acad. Sci., 45, 355-361. 

 Feely, H. W., 1960. Strontium-90 content of the stratosphere. Science, 131, 645-649. 

 Futi, H., 1939. On dust-storms in China and Manchoukuo. J. Met. Soc. Japan, ser. 2, 17, 



473-486. 

 Glawion, H., 1938. Staub und Staubfalle in Arosa. Beitr. Phys. frei. Atmos., 25, 1-43. 

 Hecht, F. and R. Patzaic, 1957. Astronaut. Acta, 3, 47 (quoted by Smales, Mapper and 



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 Hellman, G. and W. Meinardus, 1901. Der grosse Staubfall vom 9 bis 12 Marz 1901 in 



Nordafrika, Siid- und Mitteleuropa. Konigl. Preuss. Met. Inst., 2, 1-93. 

 Hurley, P. M., S. R. Hart, W. H. Pinson and H. W. Fairbairn, 1959. Authigenic versus 



detrital illite in sediments. Geol. Soc. Amer. Meeting Ahstr., 64A. 

 Jacobs, L., 1954. Dust clouds in the stratosphere. Met. Mag., 83, 115-119. 

 Junge, C. E., 1957. "Remarks about the size distribution of natural aerosols", in Artificial 



stimulation of rain. Weickman and Smith, ed., Pergamon Press, New York, 3-17. 

 Kolbe, R. W., 1955. Diatoms from Equatorial Pacific cores. Rep. Swed. Deep-Sea 



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 Kolbe, R. W., 1957. Fresh water diatoms from Atlantic deep-sea sediments. Science, 126, 



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 Kuenen, P. H., 1950. Marine Geology. Wiley, New York. 

 Larsson, W., 1937. Vulkanischen Asche vom Ausbruch des chilenischen Vulkans Quizapii 



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Inst. Univ. Upsala, 26, 27-52. 

 Libby, W. F., 1956. Radioactive strontium fall-out. Proc. Nat. Acad. Sci., 42, 365-390. 

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 Marshall, P., 1929. Dust storm of October 1928. N.Z. J. Sci. Tech., 10, 291-292. 

 Mellis, O., 1954. Volcanic ash-horizons in deep-sea sediments from the eastern Mediter- 

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208-214. 

 Miyake, Y., Y. Sugiura and Y. Katsuragi, 1956. Radioactive fall-out at Asahikawa, 



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Pacific Sci., 12, 71-81. 

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