"His quickness in understanding us was great, but not equal to that of another islander, about thirty years of age, who, seeing that the figures traced on sand were rubbed out, took one of our pencils and some paper. He traced out his island, which he called Tchoka, and made a line for the little river upon the shore of which we were--placing it two-thirds of the length of the island from north to south. He then drew Manchuria, leaving, as the old man had done, a strait at the extreme end; and to our surprise he added the river Saghalien, the name of which the natives pronounce like ourselves. He placed the mouth of this river a little to the south of the northerly point of his island.
"We afterwards wished to ascertain whether this strait was very wide. We tried to make him understand ou
