ARCTOWSKI, TOLCAXIC DUST VEILS 



161 



The curve of the consecutive means of the temperatures observed at 

 the Batavia observatory confirms the results obtained so far. So do the 

 curves of Singapore, Port Bhiir, Colombo, Bombay and Aden/^ which 

 are reproduced in Figure 3. 



The curves of Bombay and Port Blair show distinctly the antipleionian 

 depressions preceding and following the abraded pleionian crest. At 



T^I-'Mftlr. 



CoioT«l»o 



wovri'co.w 



nwew . 



? «3 ♦S36. 



Fig. 3. — Temperatures recorded at some Asiatic stations 



Port Blair the pleion is less depressed; at Aden the most. If tlie lowest 

 mean of the two years following the Krakatoa eruption expresses the 

 maximum effect of the dust veil, we must say that this maximum effect 

 was not simultaneous at the different stations taken into consideration. 

 The following tabulation gives the periods, as well as the lowering of the 

 liiean below the value of the last unaffected consecutive mean. 



^ Singapore from : "Met. obs. at the foreign and colonial stations of the Royal Engi- 

 neers. . . 1852-1886." London, 1890. 



The other stations from: "Report on the meteorology of India in 1S80. . .1800." 



