chronometer, and by eclipses of the satellites of Jupiter, &c. 433 
Longitude of Masulipatam Flag Staff by chrono- 
meter . . . . 8i° 12' 15" 
Longitude of Masulipatam Flag Staff by the 
eclipses . . . . 81 12 33 
By the chronometer . . . 81 12 15 
Mean 81 12 24 E 
Here we find a wonderful agreement by the two methods ; 
and the longitude of Masulipatam, a point of importance on 
the coast, may be considered correctly determined. 
The following information may be deemed supplementary 
to that given in my former paper on the Geographical situ- 
ation of the three Presidencies, and it is hoped will be found 
useful to navigators. 
At Madras, the Fort Flag Staff is about i",6 north, and 2 
east of the Church Steeple. This gives for the latitude of the 
Flag Staff i3°4 / 47 // north, and longitude 8o° 19' 44" E. As 
navigators generally take their departure from the Flag Staff, 
I have deemed it proper to give its situation, as well as that 
of the Steeple, given in the former paper. 
The tide on the coast about Madras seldom rises more 
than 3 feet ; and it is high water on the Syzigies, by my ob- 
servations, at 9 h 25 m . The variation of the compass towards 
the end of 1792,00 the coast, about a degree to the northward 
of Madras, was i°3 / east, by numerous observations. 
At Bombay, the time of high water on the Syzigies, at the 
Dock Head, from several observations which I made, was 
1 i h 32 m . The pilots generally allow n h i as the time. The 
greatest rise of the tide at the Dock Head was 18 feet. This 
mdcccxxii. 3 K 
