190 
Tuesday, 21st, and Wednesday, 22c/ April. 
They continued their work with great diligence. 
The little Islet, upon which we were, is called Dje* 
zira Omelmeiek, that is to say, the Island of the 
Prince's Mother. Its form is an irregular ellipsis, the 
greatest diameter of which is about 130 toises from 
north to south, and the least 51 from east to west. 
The soil consists of sand, the accumulation of which 
in the centre of the island, rises to the height of 
fourteen feet above the level of the sea. The island is 
covered entirely over with two species of plants, that 
bear neither flowers nor fruit, which I believe to be 
analogous to the Salsola Kali. 
My observations during these days gave me the lati- 
tude 25° 15' 24" N. I could not observe the longitude 
on account of the clouds, but according to my reckon- 
ing, I fixed it at about 33° 59' 45" East from the obser- 
vatory of Paris. 
The position of Djezira Omelmeiek is twenty miles 
N. | N. E. from the island of Djebel Hazen, and two 
miles from the coast of Arabia, at the northern extremi- 
ty of a small gulph formed by the main land, between 
these two isles. To the north-east of the island near the 
continent, is a good anchorage, where all the fleet lay. 
We kept the squadron of Bedouins always in view. 
There is very little drinkable water in the neighbour- 
ing country, and that is of a bad quality. We were 
obliged to pay seven francs for each pitcher of it. 
The sea rises at high tide nearly four feet in this lati- 
tude. 
Two daos from Djedda arrived on the 22d, and uni- 
ted themselves to our fleet, which was now increased 
to twenty-four daos, besides the other little vessels. 
