The native smiled. "Sokomatu", - he said. They walked in the direction from which the sound rushed, and there he saw a hunter "sokomatu" - chimpanzees, happily drumming on a log. "Tom ... Tom ... Boom ... ta-ra-ra ... boom!" Not surprisingly, that the white man can not take a step on the African jungle without his every move is not ahead of the news of his movement. Somewhere today, countless savages beat this old, old rhythm of the night. There comes a faint response. Sometimes he was so barely audible that the white man distinguishes it as scraps of barely perceptible hearing, but a familiar melody.