6 STUART : THB SRIMANGAL EARTHQUAKE OF 8TH JULY 1918. 
This Scale does not pretend to scientific accuracy, and it is 
probable that a slightly different interpretation has been put on 
the intensity represented by the isoseists, to that put by Oldham. 
Such indeed is almost inevitable but it has no effect on the results 
of the investigation. 
In the following pages, Part I has been devoted to a detailed 
description of all the impressions and effects of the earthquake as 
recorded by mySelf, and also by the local observers through the 
medium of the earthquake-forms. It is divided into six chapters 
as follows : — Chapter I contains a description of the epicentral 
area. For this I trusted mainly to my own observations during 
my tour through the area. Chapter II contains a description of the 
area enclosed by Isoseist No. 2, Chapter III of the area enclosed by 
Isoseist No. 3, and Chapter IV, that enclosed by Isoseist No. 4. 
Chapters V and VI contain a description of the remaining areas 
where the earthquake was sensibly felt. For the last two the material 
at my disposal has been derived almost entirely from the earthquake 
forms, newspapers, and the reports of local observers. Part II is 
divided into two chapters in the first of which under three sub- 
headings I discuss certain of the more prominent features of the 
earthquake as embodied in the earlier descriptive part and also 
of the unfelt earthquake and attempt to generalise concerning them. 
The last chapter is devoted to the fore-shocks and after-shocks. 
