1844.] Memoir on Indian Earthquakes. 973 



Number of shocks in January, .. .. .. .. 7 



„ „ February, 7 



„ „ March, . . 3 



„ April, 15 



„ May, 46 



„ „ June, 14 



,> „ July, 4 



„ „ August, 15 



„ „ September, 14 



„ „ October, . . . . . . .8 



„ „ November. . . . . . . . . 4 



„ „ December, .. .. .. .. 5 



Total, 144 



Dividing the year into two portions, from May to October, the 

 summer and rainy seasons ; and from November to April, the winter 

 and spring seasons, we have the following distribution of shocks 

 throughout the year. 



During summer and rainy seasons, 93 Shocks. 



„ cold „ spring „ 42 „ 



Excess in summer and rainy „ .. 51 



Had all the minor shocks been taken into account, the excess 

 would have been very much greater, but the above is sufficient to shew 

 that earthquakes are much more frequent in the months between 

 May and October, than during the remainder of the year. Of these 

 months, June, July, and August exhibit some of the severest shocks, 

 as also the greatest number. 



Now from May to October, the mean height of the Barometer is 

 invariably less than from November to April inclusive. Prinsep's 

 Meteorological Tables, (As. Soc. Journal, vol. I. p. 29,) furnish materi- 

 rials for comparison on this point, for several places within the earth- 

 quake tracts adverted to in the preceding part of this Memoir. The 

 following three are given as illustrations. 



6 o 



