164 
REPORT—1899. 
THE SHIDE REGISTER—continued. 
Date 
April 
23 
Ts 
(ee 
Time of Com- 
mencement. 
Remarks 
Five min. latera max.amp.1mm. Small P.T.’s 
3m. D 16m. 
Thirty-six min. later a max.amp.6mm. Small 
P.T.’s 25m. D about 2h. Commencement 
earlier than noted. 
Doubtful. 3 
= Six or eight similar 
PURN pecs) EE j aishacbastees between 
Fd 2 i these two. 
Continuous to 17h. 37m. 34s., with at least 7 max. 
each 1mm. 
Doubtful. 
Seven other small shocks up to 5.30. Amp. 
‘25 to‘5mm. D2to5. All doubtful. 
Thirty-five min. later a max. amp. 175mm. 
Motion rises and falls every 5 to 9m. for 2h. 
Amp. 1mm. D im. 
Amp. lmm. and D for each about 5m. 
Amp. ‘75mm. D 8m, 
a G2bDaM: ao hen 
” ” ” ” 
” ” ” ” 
5 ‘Imm. 5 Om. 
” ” ” 6m. 
30) GeDmin. wie, 2s 
3 ‘5mm. ey ahaa 
” ” ” 10m. 
5 j2omm. Aaa eels 
“o ‘5mm. 530.) 600. 
Fourteen min. later amp. 25mm. Small P.T.’s 
12m. D extends 2h. 
From a series of 10 max. each with amp. ‘25 to 
‘5mm. D dm. 
Forty min. lateramax. amp. 8mm. Small P.T’s 
9m. D 38h. The seismogram shows a marked 
symmetry. Period of L.W.’s 23s. 
Max. amp.’5mm. D 4m. 
PA a eibcohasts » 8m. Doubtful. 
Max. amp. ‘75mm. “Dobm_ Doubtful. 
a ay) | comm: » Jol, 
is » 125mm. » 40m. Small P.T.’s 14m, 
sy » sf onlm, » 45m. 
i » ‘25mm. Seem 
Max.amp.Imm. D 35m. 
sy > 25mm. sn BM. 
Amp. ‘25. D 2m. 
Max. amp. 25mm. D 2m. 
- 3 4mm. » 17m. Doubtful. 
a oy Om; » dh. Smallest P.T.’s 5m. 
Max. 3lm. from commencement. Shows sym- 
metry. Period of L.W.’s 32s. 
