MUSS00R1E-DEHRA DUN EPICENTRAL TRACT. 



105 



the building rocked as a whole about that axis and imparted the neces' 

 sary swing to the pendulum. (See fig. 29.) 



Fig. 29. — A = slit in which pendulum swung. 



Mr. Simpson's account continues : — 



On or near the road from Dehra Dun to Mussoorie via Rajpur 



Fissures and land- there appear to be no ground fissures or recent 



landslips. On the southern slope of the Mussoorie 



ridge, and some distance west of the road, two small landslips are said 



to have occurred at points where slips arc wont to occur annually 



during or after the rainy season. 



The only landslip of importance of which information has been 

 received took place near the Kampti falls, about 9 miles west of 

 Mussoorie, and on the northern slope of the ridge. This locality was 

 visited by Mr. Hallowes, who has described it as having occurred along 

 the line of a steeply inclined fissure partly infilled with stalagmite. A 

 few other minor slips on the Mussoorie- Chakrata road were reported 

 by Captain A. Anderson, Public Works Department, Executive Engi* 

 neer, Dehra Dun District. 



In Mussoorie itself several fissures were made in the roads by the 

 shock. They were filled up immediately afterwards, and nothing was 

 to be seen al the time of my visit. Their position and extent was, 



