100 Report on the Progress oftlie Magnetic Survey. [No. 2. 



I subjoin a list of the dip for some of the more important of my 

 magnetic stations : several needles were used for the observations 

 at the principal stations : — 



Names of Stations. Magnetic Dip. 



TJssilla, on the Tonse River, in Gurhwal, in the 



Himalayas, 42° 56' 4 



Mana, in Gurhwal, in the Himalayas, 42 32 



Milum, in Kumaon, (Himalayas,) 41 4 



Mussoorie, 41 14 8 



Simlah, 42 25 22 



Nainee Tal in Kumaon, 38 37 



Saugor, 29 52 



Juhbulpore, 28 28 



Nagri, South of Nagpore, 22 38 



Rajahmundry, 16 16 



Madras, (1855 February,) 7 38 



Ootacamund, Neilgherries, ,„ 4 14 



Ootatoor, near Trichinopoly, in Southern India, 2 35 30 



The magnetic dips observed by my brother, Hermann Schlagin- 



tweit, in the Eastern Himalayas and in Assam, agree very well with 



the results obtained by me in North -Western India, and they also 



show a very great dip of the needle. 



The magnetic declination in the Himalayas of Kumaon and 

 Gurhwal, visited in 1855, was every where Easterly varying from 

 3|- to 4 degrees. 



The declination continued constantly to be to the Eastward 

 along the route which I followed during the cold season from Agra 

 to Rajahmundry and from Madras to the Neilgherries. The line 

 which separates the "Westerly declination of the "Western Coast 

 of Bombay from the country with Easterly declination lay to th e 

 "West of the route followed. At the Neilgherries the declination 

 was still Easterly, amounting to 53' 30" East. 



Meteorological Observations. 



The observations of the barometer and thermometer, &c, have 

 been carried on, as before, regularly every day, and the height of 

 all the important places on the march from Agra to Rajahmundry, 



