Show A isia accord one of the most interesting studies to which ocean navigators have had their attention drawn within the last few years has been the rapid disappearance by the action of the sea of sable island which lies in the direct path of all atlantic shipping bound to phila delphis and new york the branch hydrographic office in this city has jb at been served with noli ceby the british government that one of the lighthouses that flashes its rays from the island for the guid lince of seagoing sea going vessels has beati undermined ad must be takegi down and removed to u site further in land at present the sea threatens to demolish the light and the tower sable island is situated in lati tude 4 69 longitude the imperilled imperil led I 1 ight hou was greeted consisted of a tract of low and sandy soil about five miles in upon w tion but a dwarf species of rry ever thrived the teamer alert sailed from halifax N S recently with men and materials to begin the of a temporary light on a more sheltered site this work will be prosecuted with despatch and by reason odthe marvelously quick inroads that the sea is maing it is not believed that much time will elspye before adoth er removal will be necessary from made by art en glish ivar bemel a few weeks ago it has been learned that within a of or eight years the island has been gradually reduced from fort to nineteen in a halt miles its width away from two and a half to less than one mile the maat of the sur el says that the future of e is anything but cheer ing for the navigator to contemplate and should the oceans ravages con dinue with their present destructive force it will not bo long before the sea will have a clean sweep and there will not be even a shoal left seen twenty five miles of clear land with the disappearance of the light every ocean chart now a service will become valueless if not correct and life and arty will be greatly A recent survey shows that the charts are at least ten miles wrong on the ou er portion of the island find that sand hills represented as being feet high do not exist at all other changes in the topography of the island arn believed to have taken place within a recent briod of which marinero mariners ma have no ed e |