ON SEISMOLOGICAL INVESTIGATION, 167 
Tue Kew REGISTER—continued. 
Shide Time of Fs ; 
No. ENG Date Commence- Remarks: (D=duration in minutes) 
ment 
Bite tan Bs 
3 — | April 29 Si ond Slight. D=2. Normal line=:2 mm. | 
‘ Max. tremor="5 mm. 
4 199 May 7 6 4:0 Very faint tremors at intervals from 
6h. 4m. to 6h. 41m. Most marked at 
Gh. 10°5m. and 6h. 39m. | 
5 — 3 8 8 373 Slight. D=2. Normal line=:2 mm. 
Tremor=06'4 mm. 
6 — eager LO 1 49:2 Slight. D=23. Normal line=:2 mm. 
Tremor =0°5 mm. 
ff —- se EL 12P or Slight. D=2. Normal line=:2 mm. 
Tremor = 0:4 mm. 
8 — SH LE So oie Slight. D=2. Normal line=‘2 mm. 
Tremor=0'5 mm. 
) — et 12 45°5 Very slight; little more than a broaden- 
ing of the line, 
10 — Pa ie ll 545 5, . a 
11 -? ” 22 12 45-0 ” ” ” 
12 Fe } ” 23 14 TA ” ” ” 
« 97 9 Re. 
a He a7 2 eo | Slight pulsations for about 35min. | 
meas, 3 21-7) Max. at 3h. 15m. | 
20K31 —_ Boom ‘ off’ greater part of time. | 
14 —_— June 1 16 182 Smallmovement. D=3. Line=-lomm. | 
Tremor = 0-4 mm. | 
15 | 210 Pe 3 Lt O37 Fairly well marked. D=8. Max. at 
| 17h. 145m. 
16 = | a eld 14 22:8 Very slight. D=5. 
17 een iy 4c Kh 18 41:7 Ps | Deet 
18 211 ae abo Ti te: Little more than a broadening of the 
line. 
19° | 213 | oa 2k O 46°35 Fairly well marked movement. D= 
| 64:8. Max. at 0°59°1, with a sudden 
| movement. Max.amplitude=0')mm. 
= 0:55, followed byslowly decreasing | 
| tremors till 1h. 51:1m. | 
20 — | eo al 19 2:8 Slight. D=4m. Normal line=:2 mm. | 
| Tremor ="4 mm. 
| A long series of slight tremors, the | 
21 214 ee 6 544 times given being for the commence- | 
| T 122 ment of the major movements, but 
T 365 there was almost constant movement 
| till apparently 9h. 6:5m. 
22 | 215 ye er 18 47:2 The largest disturbance recorded here 
during 1898. The maximum move- 
ment was at 19h. 21‘6m., with an 
amplitude of 5°5 mm.=3''36 of arc; 
the next largest swing occurred at 
19h. 26°2m., with amplitude of 
5mm. The movements grew smaller 
and smaller until 20h. 4:2m., but 
there were numerous tremblings up 
to 21h. 86m. 1 
23 | 216 July 2 4 25:4 Short, but well defined. Began sud- | 
denly, with almost no preliminary 
tremor. Max. was at 4h. 28°5m., 
with an amplitude =0°5 mm, 
24 | 217 a 2 16 25°8 Very slight. D=4}. 
