Two half-Eskimo sons of North Pole discoverers Robert Peary and Matthew Henson got an unnaturally warm reception from a heat wave when they arrived from icy Greenland to spend a week meeting American relatives. Karree Peary, half-white and half-Eskimo, and Anaukaq Henson, half-black and half-Eskimo, are both 80 and had never been far from their remote northern Greenland villages. To get to Cambridge, Mass., many miles and about 100 degrees away, they and 10 family members, mostly full-time hunters, went from dog sled to helicopter to Air Force jet. "He feels very comfortable because he doesn't freeze here," Eskimo Navarana Harper said, translating for Peary. The two men speak only an Eskimo dialect and normally dress in polar bear skin pants and sealskin tops. They were located last summer by Harvard Prof. S. Allen Counter, a neuroscientist and black historian who was told that Robert Peary and Matthew Henson had fathered children by Eskimo women during their 1906 expedition to the North Pole. Anaukaq Henson "told me his dream in life was to visit America and see his relatives," the professor said. Counter said the Greenlanders will meet 50 Henson relatives and about seven Peary relatives in various states. They will also lay a wreath at the Arlington National Cemetery grave of Peary, who died in 1920, and visit a Harlem church where Henson was eulogized in 1955.