1857.1 Report on the Progress of the Magnetic Survey. 213 



During this rainy period the maximum temperature never reached 

 more than 20° centigrade and on one day it only rose to 165° cent. 

 a temperature which is considered very moderate even in Europe. 

 On the 12fch February this cold and agreeable weather suddenly 

 ceased, and was followed by a surprising increase of temperature. 

 The maximum temperature generally reached 30°, even 34° cent, 

 strongly contrasting with the temperature experienced but a week 

 before. 



The climate of the Punjab during the cold season, resembles 

 much more the climate of the North West Provinces than that 

 of any other part of India, but has nevertheless its strongly 

 marked peculiarities. 



The following material differences are found when we com- 

 pare the cold season of the Punjab with that of the North West 

 Provinces. 



1. During the cold season the mean daily temperature of the 

 Punjab is much lower than in the North West Provinces. The 

 maximum temperature of the Punjab, as well as the minimum 

 temperature is considerably lower; the extremes of temperature 

 are much greater in the North West Provinces than in the 

 Punjab. 



2. In the Punjab we find a moderate and very gradual in- 

 crease of temperature from sunrise up to 12 and 2 o'clock, whilst 

 the increase of temperature in the North West Provinces from 

 sunrise up to 2 o'clock amounts sometimes to 2S° C. 



3.* — Temperature of the ground ; the observations on the tem- 

 perature of the ground from the surface down to a depth of 

 3 Meters and more were regularly continued with the instruments 

 described in our former Reports. 



The following table shows the temperature of the ground in 

 different localities from the surface down to greater depths. 



The temperature of the surface contained in this Table is the 

 maximum of the temperature observed on those days. 



* This 3 is consecutive with 2 in page 211. 



