1132 
MR. C. DAVISON ON THE ANNUAL 
Period. 
Maximum. 
Amplitude. 
Annual. 
December, h 
■27 
Semi-annual. 
{ February, 6 1 
\ August, b j 
■37 
Annual barometric . 
November, h 
45. *Zante. — D. G. and B, A. Barbtani, “ Meinoire sur les tremblements de terre 
dans Tile de Zante‘Mem. de I’Academie de Dijon,’ vol. 11, 1863, pp. 1-112. 
Duration of record, 1825-1863. Number of earthquakes, 1326 (fig. 13). 
These figures show that, on an average, at least 34 earthquakes were felt every 
year. This number is, however, too small, for the number of shocks following the 
disastrous earthquake of October 30, 1840, was so great that M. Barbiani found 
it impossible to record them all. According to the report issued by the Lord High 
Commissioner, Sir Howard Douglas, 95 shocks, some very severe, were felt beWeen 
October 30 and November 4. M. Barbtani gives an estimate of the total number of 
shocks (p. 103), and in the next paragraph I have discussed the figures given by him. 
Fig. 13. 
Zante (Baebiani). 
Period. 
Maximum. 
Amplitude. 
Annual. 
August, b 
•10 
Semi-annual. 
f June, a 1 
1 December, a J 
•19 
46. D. G. Barbiani, p. 103. 
Number of earthquakes, 1663. 
M. Barbiani’s estimate of the monthly number oD shocks differs from the pre¬ 
ceding, owing to his including several slight shocks which he counted, without giving 
the time of occurrence of each, as well as to his estimate of the number of shocks in 
the early part of November, 1840. 
