1876.] Barometric Anomalies. 31 



tract of country stretching between the Rajmahal hills and the Bhotan 

 dwars, including Dinajpur, Rangpur and probably Julpigori and Buxa." 

 Hence it appears that the ridge of relatively high pressure, before adverted 

 to, had the effect of dirninishing the rainfall generally both in the region 

 occupied by it and also to the north ; except where the abnormal depression 

 at Berhanrpore and Chittagong tended to negative this effect and produce a 

 local increase. Quoting again from the Report of the year, " it would 

 appear that the area of greatest rainfall did not coincide with that of the 

 barometric depression but was at 150 miles to the north-east of it. It was 

 very restricted, and if the data can be trusted in detail would seem to be 

 sharply defined." 



The local relative excess of pressure at False Point and Cuttack was 

 maintained through the cold weather of 1869 — 70, and up to the end of the 

 latter year ; except at Cuttack, where it fell in December. The same was 

 the case at Akyab, except temporarily in the month of May \see Tables]. 

 Its total duration extended therefore over two entire years. At False Point, 

 however, the barometer stood abnormally in excess of Akyab, during the 

 earlier months of the year and also in August and December. The region 

 of most persistent depression was about the Andamans,* and the relative 

 depression at Chittagong, Berhanrpore, and Monghyr was maintained, though 

 less intense than in the previous year. At Jubbulpore the pressure was 

 abnormally high, relatively to Nagpur, during the hot weather ; but tbis rela- 

 tion was reversed in August, and at the end of the year, the pressure at the 

 latter station ranged greatly above that at the former. 



In the Bengal Report for this year it is stated that " In the Central 

 Provinces, including Sambhalpur and the hilly country to the West of the 

 Gangetic delta, the rainfall was higher than usual ; while the Orissa coast 

 tract and the Gangetic delta had less than the average, more especially along 

 a line passing through False Point, Midnapur, and Burdwan", that is to say 

 under the lea of the high pressure region about False Point. " The stations 

 in Behar registered about the usual quantity ; in some cases much more ;" 

 this being under the lea of the relative depression about Monghyr. " In 

 Eastern Bengal and Arakan the rains were generally somewhat deficient, 

 except at Sylhet and Noakhally" ; and it is observed that " some of these 

 local irregularities appear to be very anomalous." 



I next come to the year 1871, one of unusually heavy rainfall in Ben- 

 gal (except the Eastern districts and Lower Assam) and also in the NW 

 Provinces and Central India. In this year, the pressure was abnormally low 

 in the eastern part of the Bay about Akyab, in Orissa, and in Central India 

 north of the Satpiira range ; as compared with Bengal, the Gangetic valley, 

 and the tract to the South of the Satpuras. On the west coast (the In- 

 * In January a cyclone occurred in the extreme South of the Bay. 



