336 Scientific Intelligence. [No. 8, new series. 



From Jubbulpore up to Umerkuntuk, a strong South-West or 



Winds. South wind set in very regularly, between 



9 and 10 a. m„ and continued till 5 or 5-30 p. m. The nights were 

 constantly calm. At Umerkuntuk the wind blew from the same 

 direction, but it was quite calm during the rain falls. I had not 

 the least wind on the journey from Paindra to Rewah, where 

 again a South- West wind began. 



When comparing my meteorological observations with those 

 made during the cold season of 1854-55 by my brothers and my- 

 self, in Southern parts of India, the Deccan, Mysore, &c, I find 

 that in Southern India there is, at equal elevations never so cold 

 a temperature as I observed this season in Central India, in the 

 valley of the Nerbudda, &c. 



In connexion with this fact, it deserves mention, that in summer 

 the reverse takes place, and that the maximum heat of Central 

 India, at equal elevations, generally exceeds somewhat that of 

 Southern India. 



Together with the observations of the dry and wet bulb thermo- 



Barometrical obser- meters » the readin g s of tne barometer were 

 vations. registered, and I have been able to deter- 



mine the heights of all important places on the route followed. 

 Some stations were determined both by the barometer and the boil- 

 ing point thermometer, which by its minute and accurate divisions 

 (each degree of Celsius is divided into 100 parts) and having been 

 carefully compared at different heights with barometers, may be con- 

 sidered as giving equally accurate results with the barometer itself. 

 On the journey from Sohagpore to Rewah, I used only this instru- 

 ment, as the barometer was leaking very much, and some air had 

 introduced itself into it. 



The minimum of barometric pressure at about 4 p. m. occurred 

 on the small plateau of Umerkuntuk, very nearly at the same 

 time as in the lower valleys and plains of Hindoostan, and the 

 daily variation of the barometer seems to be very nearly the same 

 at Umerkuntuk as it is in the plains. 



The temperature of the earth, at different depths, was determin- 



Temperature of the ed b ? the lon S thermometer (one metre in 

 earth. length.) For greater depths I used a ther- 



