SPECIAL TYPE OF DISTURBANCE. 



187 



103. Table LXIX gives particulars of the 82 cases of the phenomenon actually found. It gives the 

 date, the approximate hour answering to the end of the first phase and the beginning of the second, the 



duration of each phase, and the results of the curve measurements. A double entry, e.g. TIKI i n ' ne 



D column means that the turning-point on the D curve occurred distinctly after the time taken as 

 the ending of the first phase, the fall experienced during the first phase continuing for a short time, and 

 being then followed by a larger rise. The addition of a + after a figure means that the trace went beyond 

 the limit of registration to which the figure given answers. In such a case the amplitude assigned is, of 

 course, an underestimate. 



TABLE LXIX. Special Type of Disturbance. Occurrences. 



2 B 2 



