to 
bo 
qt 
ON SEISMOLOGICAL INVESTIGATION, 
9.55.10 
ot 
No. 264.—I.W. S=58'25. 
9.52.11. 
No, 264.—T. 
10.45.16. 
a 
‘ 
No. 268.—I.W. S=58'5. 
10.41.52. 
No. 268.—T. S=58'25, 
11.17.17, 
oC rr I 
} t 
No. 268.—V. S=60'5, 
14.57.41, 
EE —— 
No. 269.—I.W. S=58'25. 
15.5.11, 
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a 
' 
No. 269.—YV,. 
14.53.19. 
t 
No. 270.—I W. S=58'5. 
15 0.12. 
ee ee ae Sa 
t 
No. 270.—V. 
14.46.57, 
nL 
1 
No. 270.—T, S=59. 
IV, Varieties of Earthquakes and their Respective Durations. 
Those who live in a country where earthquakes are frequent must 
have observed that the shocks they feel may at least be divided into two 
groups. The members of one of these groups are phenomena characterised 
1899, Q 
