324 MIDDLEMISS : KANGRA EARTHQUAKE. 



the region to the north is generally inaccessible and uninhabited. These 

 areas (although for the above reason they cannot be fully computed) 

 are of immense and increasing size — the length of the VI- VII area 

 along its longest axis being somewhat over 500 miles and spreading 

 away from the hills into the great plains of the Indo-Gangetic drainage 

 system. 



On one of the maps (pi. 29) the Vllth isoseist is marked separa- 

 tely, and it is shown as taking a somewhat uneven course. This course 

 is chiefly dependent on the relative values of the intensities as given by 

 Mr. Pascoe in his descriptive part of this volume, the intensity at Lahore 

 being taken as VII. 



Outside of this area, with only the earthquake forms to depend on 

 Drawn with smooth * or evidence, the curves of the grouped isoseists have 

 curves - had to be made smooth, as representing a mean of 



many somewhat conflicting data. The, data alluded to are of course 

 the values of the intensities estimated for any particular locality on the 

 evidence of the earthquake forms (see p. 303). Any other mode of 

 drawing these lower isoseists would have led to extremely complicated 

 curves, frequently approaching or even cutting one another, whose ir- 

 regularities one would have known were far more the result of varying 

 standards of observation than of any real surface difference. 



With the map before one it is hardly necessary to describe the 

 position of these curves in terms of the towns cut by them, or to give 

 any further detailed lists of towns included within them. All the 

 particular evidence for individual places is summarised in the previous 

 parts of this volume, namely in the chapters devoted to Mr. Pascoe's 

 survey and in that given in the earthquake forms. To these one must 

 turn for all special information, which also has much of individual 

 interest. 



But it is felt that only a very brief summarised description of those 

 tj . t . isoseismals as definite unit areas will be advisable 



Brief treatment 



here. here, seeing that their boundaries and contained 



areas, except in one case, were never personally surveyed, and are 



