i899-'oo 



TRANSACTIONS 



129 



Prely. Tremors. Toronto 4 42 



h in 



Victoria 4 48 



27 



43 



Waves 4 54 16 



h 111 s 



16 44 



Prely. Tremors. Toronto 157 54 

 Victoria 15 13 i 



Waves 15 16 



h ni 



15 30 47 



14 47 o 



Also the magnets at the Agincourt Observatory near Toronto be- 

 gan to swing at i5h i6m. 



Passing on to July 14th, an important disturbance began at 

 Victoria at i3h 41m os, and at Toronto ih 27m later. The large 

 waves reached Victoria in 8h 3m and Toronto in 19 26. The 

 origin of this was clearly near the Sandwich Islands, where heavy 

 quakes occurred on this day. and Mauna Loa was in violent erup- 

 tion ; this disturbance was also recorded by the magnets at 

 Agincourt. 



Tremors announcing another quake began in Victoria at oh 

 26m 13s G. M. T. on the 3rd, September, and 4 minutes later at 

 Toronto; and the large waves reached the former point at oh 30m 

 14s, and the latter at oh 48m 19s, about which time the magnets 

 began to swing. This was the great Alaskan quake of September 

 3rd. The preliminary movement was registered at Kew Obser- 

 vatory, England, 6m 52s after Victoria, and at Cadiz, Spain, 25 

 seconds later. Another shock followed something over four 

 hours later and this likewise was recorded by the seismographs 

 in all parts of the world. 



On the loth, in the same region, two other- world shaking 

 quakes occurred. Unfortunately the Victoria seismogram was lost 

 ih the mails, but, as the slide now on the screen shows, Toronto re 

 corded both of them and most satisfactory records were obtained 

 throughout Europe, and presumably Asia and Africa. As at the 

 Cape of Good Hope, the disturbance was very pronounced. I 

 regret that so far I have been unable to discover the exact centre 

 of these quakes ; but, from such accounts as have been received, 

 it would appear that they were the most severe ever ex- 

 perienced In those regions since visited by white men. 



