28 Jolin Eliot — On tlie occasional Inversion of the Temperature [No. 1, 



2nd, the niglit of the 23rd. 



Srd, the nights of the 30th and 31st. 

 The last is the most striking example and is therefore best adapted 

 to illustrate the temperature relations between the hills and plains during 

 cold weather storms. 



The following gives a brief description of the character of these dis- 

 turbances taken from the India monthly weather report for January 

 1889. 



'' The barometer began to fall briskly on the afternoon of the 8th in 

 Upper Sind and Beluchistan, and a very shallow depression was formed 

 on the 9th, which followed the same course as the previous disturbance 

 and gave moderately heavy snow to the Punjab Himalayas on the 10th, 

 and brought the snow lino down to below 9,000 feet. The weather con- 

 tinued somewhat disturbed in Northern India for three days longer, and 

 light showers fell at the hill stations on the 12th, and in Behar, Chutia 

 Nagpore, and Central Bengal on the 13th. Pressure increased steadily 

 until the 17th, when very strongly marked anti-cyclonic conditions, with 

 fine, clear, cool weather and strong westerly or north-westerly winds, 

 prevailed over the whole of Northern India. The highest pressures of 

 the month were recorded on the morning of the 17th, the absolute maxi- 

 mum being 30*38'' at Peshawar. No change of importance occurred un- 

 till the 22nd, when the barometer fell briskly in North- Western India. 

 The disturbance then initiated differed considerably in character from 

 the previous. There were two separate areas of disturbance in which 

 the barometer fell rapidly, and more or less general rain was received. 

 The first included the Punjab Himalayas and adjacent plains from 

 Sealkot to Boorkee, and the second comprised the greater part of 

 Bajputana and Indore. The disturbance in the Punjab passed away 

 after giving moderate snow in the hills on the afternoon of the 23rd and 

 light showers in the adjacent plains. That which originated in Baj- 

 putana drifted during the next two days eastward into East Bengal and 

 Burma, and gave moderate general rain to the North- Western Provinces, 

 Central India, and light local showers in Behar, Bengal, and Assam. 

 A short interval of fine weather followed until the afternoon of the 27th, 

 when the first large and important cold weather storm of the year 

 was initiated. It was, like the previous, a double disturbance. It 

 consisted in part of a shallow depression which passed into Sind from 

 Beluchistan on the 28th and advanced during the next three days in an 

 east-south-east direction across the head of the Peninsula into Upper 

 Burma, to which it gave cloudy weather on the 1st February. It ap- 

 parently filled up very slowly in that area and gave low pressure in 

 Burma until the 5th. The appearance of this depression in Sind on the 



