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 by water more easily than by the arduous crossing of the mountains or the dangerous approach through Phutra, which lay almost directly in line between Anoroc and Greenwich to the northwest.

If Sari lay upon the same water then the shore-line must bend far back toward the southwest of Greenwich—an assumption which, by the way, we found later to be true. Also, Sari was upon a lofty plateau at the southern end of a mighty gulf of the Great Ocean.

The location which Ja gave to distant Amoz puzzled us, for it placed it due north of Greenwich, apparently in mid-ocean. As Ja had never been so far and knew only of Amoz through hearsay, we thought that he must be mistaken; but he was not. Amoz lies directly north of Greenwich across the mouth of the same gulf as that upon which Sari is.

The sense of direction and location of these primitive Pellucidarians is little short of uncanny, as I have had occasion to remark in the past. You may take one of them to the uttermost ends of his world, to places of which he has never even heard, yet without sun or moon or stars to guide him, without map or compass, he will travel straight for home in the shortest direction.

Mountains, rivers, and seas may have to be gone around, but never once does his sense of direction fail him—the homing instinct is supreme.

In the same remarkable way they never forget the location of any place to which they have ever been, and know that of many of which they have only heard from others who have visited them.

In short, each Pellucidarian is a walking geography of his own district and of much of the country contiguous thereto. It always proved of the greatest aid to Perry and me; nevertheless we were anxious to enlarge our map, for we at least were not endowed with the homing instinct.

After several long councils it was decided that, in order to expedite matters, Perry should return to the prospector with a strong party of Mezops and fetch the freight I had brought from the outer world. Ja and his warriors were much im-