170 
On observing the Polar Star. 
[June, 
: 16th. Set out along with the Myo-ouk for Nyoung-la, in a large boat. We 
arrived there about half past 6 A. m., and sent for the head-man of the village. 
He said, that previous to Mr. Crawfurd’s arrival there, the village had been 
attacked by banditti, and all the inhabitants had fled into the jungle ; and that 
when the Steam -boat run aground nearly opposite, the village was occupied 
by a Bho, and detachment of soldiers stationed there to protect the village, and 
induce the villagers to return. And that, at present, there was not a single inha- 
bitant in the place, who was present, when Mr. C. made his collection. He, how- 
ever, professed his readiness to assist me in ray researches. We spent the rest 
of the day in traversing the country between Nyoung-la and Yenangyoung, but 
unfortunately fell in with nothing worthy of notice. 
Finding that I could not succeed unless I remained, at least, a fortnight at 
this place, I requested the Myo-ouk to furnish me with a boat in order that 
I might return to Ava; after having exacted a promise from him, and the 
Akhou-woon, that they would leave no means untried to collect as many petrified 
bones as possible. He would, on no account, consent to my returning overland. 
20th. Overtook the Row-boat at Pagahm-niyo , and took a small packet for 
Major Burney. 
XV — On observing Azimuths by means of the Pole-star. 
To the Editor of Gleanings in Science. 
Sir, 
A friend having brought to my notice the facility of obtaining Azimuths from 
the Pole-star, and believing that it would be very useful, in low northern latitudes, to 
seafaring people, I have drawn up a table of Azimuths suitable for purposes of 
moderate accuracy, which I beg to offer for publication in your Gleanings. 
I am, Sir, 
Camp , near Meerut , Dec. 1830. Your most obedient Servant, 
B. 
Example. January 18, 1830, in North Lat. 28<>, and East Long. 77°, at 18 h. 
21 m. 30 s. the angle between the pole star and a station was observed, 1 1 6° 47 ^ j 
altitude of the star 26° 39', while its magnetic bearing was N. 49' W. Required 
the true bearing at the station, and the magnetic deviation. 
Buie. Add together the sine of the hour angle, the sine of the north polar dis- 
tance of the star, and the cosine on at the altitude, deducting 10 from the index ; 
the remainder will be the sine of the elongations in Azimuth, which, if east, must 
be added to the observed angle, or substracted, if west, for the magnetic deviation; 
the difference between the observed and the computed elongation, if at the same 
name (east or west of the meridian), or sum, if at a contrary denomination, will 
be the deviation, which will be east or west, according as the observed Azimuth is to 
the left or right of the elongation. 
By Logarithms for the true bearing of the station. 
r* t h n 
■k. Longitude, 77° = 5 08 
Time at place of Observation, 18 21 
7n s 
2 ’ 21 = Corn, in AR. for. 
• • 
13 13 
h m s 
Sun’s AR. 18th Jan. 1830, .. 20 0 13 
-f- 2 21 
Sun’s AR. Corrected — 20 02 39 
