32 H. F. Blanford — On protracted Relative [No. I, 



dian coast) of the Bay, especially about False Point, the pressure was still 

 relatively high, so that the two areas of abnormally low pressure, viz. that 

 on the East of the Bay and that of Orissa, were distinct and separated. 

 The Akyab depression did not extend to Port Blair (Andamans), where the 

 pressure was on the whole slightly in excess of the average. To shew these 

 differences, in the Table for 1871 I have compared in the same manner as 

 before, Akyab with Chittagong on the north and Port Blair on the south ; 

 False Point with Vizagapatam, and this with Madras on the south and with 

 Berharnpore on the north ; also with Akyab on the east and Cuttack on 

 the west ; Cuttack with Berharnpore, Monghyr, and Jubbulpore ; and Jub- 

 bulpore with Benares on the north and Nagpore on the south. Also Ber- 

 hampur with Monghyr and Chittagong. 



The general persistency of the relative baric anomalies of the season is 

 well shewn in the table. But it exhibits some interruptions ; as for instance 

 a sudden relative depression at False Point, Vizagapatam, and Cuttack in 

 June, coinciding indeed with a general fall below the average, but most 

 intense at those stations. The rainfall in this month was exceptionally 

 heavy in the Gangetic delta, especially in the neighbourhood of Calcutta, 

 where it was about twice as great as at Saugor Island ; thus repeating the 

 conditions already noticed in 1868. Another noticeable interruption is a 

 rapid rise of pressure at Jubbulpore in October, which was partially felt at 

 Nagpore and Benares, but not at all in Orissa ; while in Lower Bengal there 

 was a fall of pressure. Fluctuations in the amounts of the relative anoma- 

 lies, of less magnitude are indicated throughout, as might indeed be expect- 

 ed ; but they are for the most part gradual and not such as to negative the 

 general truth of the law of persistency. 



The next year, 1872, was one of light rainfall in Bengal generally (that 

 of every month being below the average) ; but it was excessive in Orissa and 

 Chutia Nagpore. It was also stormy in the Bay of Bengal, which was not 

 the case in 1871. In the N. Western and Central Provinces the rainfall 

 was either about the average or somewhat above it ; this was chiefly due to 

 the heavier fall of the later months of the monsoon. Both in the N. "W. 

 Provinces and Behar, the hot weather months with June and July were 

 generally dry, and rain did not fall plentifully till August. The anomalous 

 barometric depression in the neighbourhood of Akyab, and in Orissa as com- 

 pared with stations to the North was greater than in 1871 ; but Akyab did 

 not on the whole range abnormally below Port Blah', nor did Jubbulpore 

 range unusually below Nagpore on the one hand and Benares on the other, 

 as in the previous year ; while an abnormal depression in the N. West of 

 the Bay connected the Orissa and Akyab depressions, being greatest about 

 False Point, or possibly in the neighbouring part of the Bay. To shew 

 this distribution I give tables for the same stations as in the previous year, 



