"the Island [at] the mouth of the Black River") was the most common, while the name "Huye" (presumably, "Kuye", 庫頁), which they had heard in Beijing, was completely unknown to the locals.The Jesuits did not have a chance to visit the island personally, and the geographical information provided by the "Ke tcheng" people and Manchus who had been to the island was insufficient to allow them to identify it as the land visited by de Vries in 1643.