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to be developed in a marvellous fashion. It is obvious that in 
crossing the restored Bay of Triton, some ‘forty miles in breadth, 
its evil influence, though perhaps not always absolutely destroyed, 
will be considerably modified. 
The new sea, again, will form a means of communication 
between regions south of the Atlas and the rest of the world. 
This, and security for life and property, will be the only things 
needful for the agriculture and industry of these regions to attain 
a very high degree of prosperity. The Valley of Djeddi, and all 
the south of Algeria and Tunis, will find itself in easy communi- 
cation with the Mediterranean. What a new impulse will be given 
to the industry of this so long neglected country! Its inhabitants 
are born merchants, and in the pursuits of commerce traverse the 
Sahara, as far as Timbuctoo and the Niger; and even now, with 
everything against them, the exportation and importation between 
the Soudan and the coast of the Mediterranean is reckoned at 
more than £2,000,000, of which English goods form no unim- 
portant part. The whole of this trade takes place by means of 
camels, and is exposed on its route to all sorts of dangers, and 
many arbitrary exactions, and the greater part of it would converge 
towards the new sea, along the shores of which busy and important 
cities would of necessity again arise. 
Thus may we speculate upon the changes likely to result from 
a revival of the Bay of Triton, and thereby realize the condition of 
this great depression, when connected with the Mediterranean. 
The restoration of this communication is a French idea. Mr. 
Mackenzie, and a body of Englishmen, have drawn attention, 
however, to another supposed depression to the S.W., which they 
presume extends into the Sahara to an unknown distance. By an 
opening on the west coast, opposite to the Canary Islands, through 
which at present flows the River Juby, Mr. Mackenzie imagines it 
possible to submerge by a canal of a few miles in length, a vast 
area, and so produce in the very centre of the vast continent, the 
same amelioration of climate, fertility, commerce, and civilization, 
as in Algeria and Tunis would result from the formation of the 
Bay of Triton. An expedition has been sent to study this problem, 
