oct. — MA.R. 1858-59.] Report of the Magnetic Survey. 347 



Names of 

 Rivers. 



Names of the nearest 

 Places. 





h v m 



2 



Februai 

 1856. 



Temperal 

 of the we 

 at 11 A. 



■ 



Temperal 

 of the ail 



9 A. M. 





Centigrade. 



Centigrade. 



a 

 O 



15 6 



12 4 



Q 

 O 



15 7 



12 6 



y 



16 2 



13 7 



i n 

 1U 



1*7 1 



17 1 



16 2 



1 1 



1 1 



1*7 O 



17 2 



15 8 



1 Q 



lo 



1*7 C 



17 5 



14 o 



14 



17 8 



17 0 



15 



18 4 



19 3 



16 



19 4 



18 6 



17 



19 3 



18 7 



1 Q 



19 6 



OA >n 



20 7 



1 Q 



J. V 



1Q *7 



99 1 



20 



21 2 



21 7 



21 



22 8 



22 8 



22 



21 6 



21 8 



23 



21 6 



21 4 



24 



22 0 



20 5 



25 



23 5 



23 4 



26 



23 8 



25 5 



27 



24 6 



26 1 



Brahmapootra 



Zuboona 



Kertinana. 

 Bargunga . 

 Damudar . 

 Charcollee. 

 Passur. . . . 

 Seprah . . . 



Terra Bank a... 

 Moree Gunga. 



At Debrooghur 



Above Dikhoo Mookh . 

 Above Dhunsiri Mook . 



Tezpore 



At the mouth of the 



Kulluny , 



Go wah atty , 



Above Doobree. . . , 



Below Doobree 



Bugwa 



Hajeepore 



Seraj gunge 



Amerbad 



Senpore 



Kalaghaut 



Burrissole 



Bidaboorea 



Koolna 



Near Grant No. 



Sunderbunds. . . . 

 Near Grant No. 155 



Sunderbunds 



East of Saugor Island... 



The variation of the temperature of the air is 26° 1', 12 c 6', 

 13° 2', C, of the water 24° 6', 15° 6', 9 P C. 



In the Dhunsiri and in the Biju, the difference between the 

 temperature of the Dhunsiri near Orang in the valley of Assam 

 and of the Biju, a lateral affluence of the Dhunsiri at Nurigoon, 

 was Dhunsiri, 18° 1' 



Biju, - 9° 0' 9° 1' C. 



During my journey from Calcutta to Umballa, I tried, besides, 

 several times, some experiments to measure the heating power of 

 the sun's rays under various conditions. 



I used for a complete observation the following thermometers :— 



2* ] Dry and wet bulb for temperature and moisture of the air. 



