Geographical Positions determined by the Astronomical Observations of 
Ali Bey. 
Ali Bey fixed the longi- 
tudes of the annexed table, 
by observations of the lunar 
distances, and of the eclipses 
of the satellites of Jupiter. 
The positions of Mecca and 
Djedda, in particular, have 
been verified by a multitude 
of observations, the mean 
term of which is very little 
distant from the extremes. 
At the Wadi Corondel, 
Ali Bey observed several 
contacts of a lunar eclipse, 
the calculations of which 
have not been met with 
among his papers. 
The latitudes were fixed 
by a great number of pas- 
sages of the sun and stars 
over the meridian. 
All these observations will 
be discussed in the scientific 
part of the Travels of Ali 
Bey. They were made with 
the same instruments which 
he employed at Morocco, 
except the chronometer of 
Brooksbank, which was bro- 
ken, and that of Pennington, 
which was stolen at Mina, 
beyond Mecca. These two 
accidents prevented Ali Bey 
from multiplying his observations of longitude on his return from Mecca. 
Ali Bey, having been made prisoner by the Wehhabites, at a short distance from Medina, 
thinks he is enabled to fix the geographical position of that city, such as it is seen on this 
map, without any considerable error. 
It will be seen, that the Belea el Haram, that is, the Forbidden Land, or Holy Land of the 
Mussulmans, the entrance into which is forbidden to every individual not a Mussulman, and 
the capital of which is Mecca, is a country almost entirely mountainous; yet the mountains 
are not very elevated, and the country is almost wholly arid. The high mountains form a 
line, in a direction nearly from south-east to north-west: they run by Taif, Medina, and Yen- 
boa en Nahhal, and terminate on the sea-coast, near the islands named Djebel Hasen, and 
She isles of Ham a ra. 
Geographical Points determined by the Astronomical Ob- 
servations of Ali Bey. 
Lono-itude 
North 
Latitude. 
east of the me- 
ridian of the 
observatory of 
Greenwich. 
° 
" 
MECCA, - 
21 
28 
9 
40 15 0 
Djedda, .... 
21 
32 
42 
39 6 0 
Tual, - 
22 
5 
46 
Omelmusk, - 
2 2 
38 51 15 
Dounibatz, - 
22 
37 
0 
38 52 0 
El Hhabt, « 
38 39 0 
Ras Abiad C. - 
23 
30 
0 
Yenboa el Bahhar, 
24 
7 
6 
37 32 30 
Djebel Hazen I. 
25 
2 
6 
fOmelmelek, 
25 
15 
24 
Isles of Ham a ra,< Moard 
25 
27 
0 
[ Scheik Morgob, 
25 
45 
47 
El Wadjih, 
26 
13 
39 
Libeyat, .... 
26 
28 
25 
Zouida, - 
26 
36 
34 
Kalaat el Miilah, 
27 
28 
30 
Ras Abumohamed C. - 
27 
50 
0 
33 33 10 
El Wadi Tor, 
28 
18 
51 
Al Marhha, - 
29 
1 
41 
