1. 6. Report of the Kratatoa Committee of the Royal Society, London (1888): The Eruption of Krakatoa, and Subsequent Phenomena pp. 384-405.
2. 8. Jaggar, T. A. (1947): Origin and Development of Craters, the Geological Soc. Amer. Memo. 21.
3. 9. Clayton H. H. (1944): World Weather Records, Smithonian Misc. Coll., Vols. 79, 90 and 105.
4. 11. Rex, D. F. (1950): The climatology of blocking action, Tellus, 2, 275-301.
5. 12. Wexler, H. (1951): On the effects of volcanic dust on insolation and weather (1), B. A. M. S. 32, 10-15.