10 Hon. Ralph Abercromby. Relation between 



logs are derived from an exhaustive memoir by Mr. J. Eliot, Meteoro- 

 logical Reporter to the Government of Bengal, entitled ' Report on 

 the Madras Cyclone of May 1877.' 



The broad features of these three days are very simple. In all the 

 highest pressure lies over Burma and the eastern side of the Bay of 

 Bengal, while a cyclone which has formed to the east of Ceylon passes 

 np the western side of the Bay in a generally northerly direction. On 

 every day the cyclone is oval, the longer diameter approximating in 

 direction to the line of propagation ; but while the isobars are packed 

 towards the rear of the cyclone on the first two days, the centre is very 

 decidedly pressed towards the front on the last day. 



The cyclone increased half an inch in depth between the first and 

 second days, and the last day especially the steepness of the central 



Fig. 2. 



Fig. 3. 



