Was the "Albatross" seen by the Arabs, the Mozabites, and the Negroes who share amongst them the town of Wargla? Certainly, for she was saluted with many hundred gunshot, and the bullets fell back before they reached her.

Then came the night, that silent night in the desert of which Felicien David has so poetically told us the secrets.

During the following hours the course lay southwesterly, cutting across the routes of El Golea, one of which was explored in 1859 by the intrepid Duveyrier.

The darkness was profound. Nothing could be seen of the Trans- Saharan Railway constructing on the plans of Duponchel--a long ribbon of iron destined to bind together Algiers and Timbuktu by way of Laghouat and Gardaia, and destined eventually to run down into the Gulf of Guinea.

Then the "Albatross" entered the equatorial region below the tropic of Cancer. Six hundred miles from the northern frontier of the Sahara she crossed the route on which Major Laing met his, death in 1846, and crossed the road of the caravans from Morocco to the Sudan, and that part of the desert swept by the Tuaregs, where could be heard what is called "the song of the sand," a soft and plaintive murmur that seems to escape from the ground.