200 



REPORT — 1897. 



enough, when the cables were recovered, all sorts of things, even the roots 

 of trees, were found attached to them. The whole thing seemed to be a 

 great upheaval of nature. From the same paper, August 20, 1888, we 

 learn that these two interruptions took place at points widely separated. 

 In Port Darwin time, the fractures took place on June 29, at 10.40 p.m. 

 The three interruptions of July 11, 1890, took place, in Banjoewanji time, 

 at 1.35 A.M., on a rough, uneven bottom, between Tafel Hoek (Bali) and 

 Balambangan Point, Java, where the depths vary from 155 to 927 fathoms. 

 The duplicate cable was broken in three places, and overlaid about 65 miles 

 from Banjoewanji. The three cables run along two sides and near the 

 bottom of a gully separating Baly from Java, and are about 7 miles 

 apart. They practically broke on one line, and the cause was ' volcanic ' 

 action.' In this instance, as in that of June 30, 1888, the submarine 

 displacements extended over an unusually wide area ; and, when we refer 

 to a chart, it is seen that at a distance of 9 miles in a south-west 

 direction from Tafel Hoek there is a depth of 1,180 fathoms, indicating a 

 slope of 1 in 7. 



The only interruptions which can be compared with the records of 

 horizontal pendulums are the last five, whilst the time of the inter- 

 ruption of March 22, 1893, is not known. The mean Greenwich times 

 and dates at which the remaining four took place in 1893 are as follows : — 



1. February 22, between 4h. 20m. and 161i. 20m. 



2. September 12, 12h. 20m. 



3. October 24, 17h. 5m. 



4. October 26, 3h. Om. 



The conclusion is that only the first of these four interruptions took 

 place when an unfelt earthquake was recorded in Europe, but similar dis- 

 turbances were noted on September 11 and October 22. 



The following table is a comparison of the days and hours when 

 earthquakes were felt in Java, with the times at which cables were 

 interrupted : — 



See Eleotrician, October 24, 1890, vol. sxv. 



