442 



Transactions. 



Records of Milne Seismograph iVo. 16 — continued. 



April 14 



18 



19 



May 



A ug. 



29 

 2 



12 



„ 13 



„ 15 



„ I? 

 „ 18 



„ 19 

 „ 19 

 „ 19 

 „ 21 

 June 1 



„ 2 



„ 2 



„ 2 

 5 



„ o 



„ 9 



„ 22 



„ 24 



„ 30 



July 12 



„ 12 



„ 17 



„ 19 

 „ 22 

 .. 22 

 .. 23 

 „ 31 

 3 

 3 



7 



8 



9 



12 



12 



(Mean boom period, 15-4 sec. 1 mm. = 0-66" of tilt.) 



4 02-9 

 4 07-5 



13 33-6 



14 010 

 6 15-4 

 6 21-6 

 6 44-9 



13 181 

 8 11-5 



5 28-4 



23 41-9 



41-9 



2 31-5 



12 58-8 



4 40-2 



01-4 



29-8 



28-8 



14 43-2 



28-0 



00- 1 



23 18-6 



o 



4 

 6 



8 

 7 

 8 

 6 

 11 

 3 



1 



I 

 22 



1 

 II 



(i 



9 



7 38-1 

 10 21-5 

 10 21-5 



19-6 



18-7 

 14-1 

 26-2 

 32-5 

 20-3 



240 

 271 



40-8 

 13-6 



20- 1 

 25-8 



25-8 



4 111 



14 300 



6 

 13 



8 



12 

 13 



5 



23 







2 



11 



13 



5 

 4 



14 

 



10-3 

 470 

 24-8 

 131 

 01-3 

 23-2 

 34-6 

 43-9 

 43-9 

 32-6 

 38-8 

 16-9 



02-9 



340 



48-4 

 32-2 



12 



7 



10 

 11 

 15' 

 15 



8 



1 

 22 



1 

 11 



6 



35-2 

 49-5 



410 

 21-5 

 45-7 

 52-9 

 24-7 

 25-9 



li 41-6 



11 39-6 



3 21-8 



4 53-4 



28-6 



48-6 

 18-8 

 23-2 



27-S 



17-0+ 1 56 



9 360 



6-7 



70 



0-4 

 1-4 



0-45 



0-55 



0-5 



1-2 



0-9 



0-45 



0-4 



0-8 



10 



3-5 



0-5 



0-9 

 0-5 



0-4 

 0-35 



01 



0-4 



0-1 

 0-4 



<)•:;.-> 

 0-45 

 0-9 



3-4 



0-35 



0-25 



0-6 



0-2 



0-25 



3 21 



4 09 

 38 

 41 

 21 



42 

 28 

 22 

 26 



46 



43 

 56 

 18 



•> 



48 

 04 

 04 



25 

 05 

 42 



18 

 16 

 05 

 43 

 24 

 41 



58 

 11 

 18 

 15 

 14 

 30 



? Origin, New Hebrides. 

 San Francisco. Subsequent tremors 

 at 17 17-6, 18 19-7, 19 20-7. 



I Small, and in middle of night 

 j tremors. 



In middle of night tremors. 

 B.P.. 15-1 sec. 

 B.P., 15 sec. 



Thickening of line. 



End obscured by night tremors. 



Very slight. 



Very slight thickening. 



In middle of night tremors. 



Thickening merely. 



Very slight thickening. 



I Beginning and end obscured by 



/ night tremors. 



Very slight. 



Slight swelling. 



