0CT , — mar. 1858-59.] Report of the Magnetic Survey. 343 



After a stay of twenty-nine days I proceeded by Cawnpore, Agra 

 and Umballa to Simla, visiting Lucknow in Oude and Meerut 

 for magnetic observations. 



I arrived at Simla on the 24th. From here the Eastern part, 

 Ladak, and the ranges of this part of the Himalaya and the Kuen- 

 luen, will be examined. 



Two of the four Sikhim men I had with me in Sikhim and As- 

 sam, the Lepcha Chezy and the Bhootea Dublong, are to make 

 during this summer some observations in Sikhim, furnished with 

 some thermometers, a boiling thermometer, and a prismatic com- 

 pass. 



Mr. Montairo, attached to my Establishment for collections left 

 Darjeeling August 23rd, and went to Calcutta, where he received 

 and prepared, for being sent to Europe, the objects of collections 

 sent down to him from the Khossia Hills and Assam. He arrived 

 at Simla May 20th. He is going via Kangra to Kashmere. 

 Magnetic Observations. 



Magnetic observations have been made at the following Stations : — 

 Assam and Delta of the Ganges. 



1 . Oodulgoorie, on the Bhootan Frontier — December 30th and 

 31st, 1855, January 1st, 2nd, 3rd and 4th, 1856. Declination, ho- 

 rizontal intensity, vertical intensity, and a set of observations for 

 ascertaining the daily variations, longitude and latitude. 



2. Nurigoon, in Bhootan — January 9th, 10th and 12th. De- 

 clination, horizontal and vertical intensity, longitude and latitude. 



3. Tezpore, on the right shore of the Brahmapootra — January 

 24th, 25th and 28th. Declination, horizontal and vertical force, 

 longitude and latitude. 



4. Debrooghur, Upper Assam — February 5th and 6th. Decli- 

 nation, horizontal and vertical intensity, longitude and latitude. 



Gowahatty — see preceding Report. 



5. Serajgunge, on the right shore of the Kenur River — Febru- 

 ary 17th. Vertical intensity. 



6. Dacca — February 21st. Vertical intensity. 



7. Koolna, on the right shore of the Bhogrup — -February 24th 

 Declination, vertical force, longitude and latitude. 



