Paranormal record / 1903
September 1903. An oil-company camp deep in the Sumatran jungle. About one o'clock at night, W. G. Grottendieck woke on a wooden floor to the sound of something falling beside his head. Small black stones were landing close to his pillow. They came through a roof of dry kadjang leaves. They left no holes. They fell with uncanny slowness, curving through the air, and seemed to swerve away when he reached for them. His servant boy fled into the pitch-dark night. Then the stones stopped. The account reached the Society for Psychical Research in 1906, and the argument over that night has never quite settled.
In 1903, W. G. Grottendieck was working for an oil company in the Dutch East Indies. He was Dutch, and an Associate of the Society for Psychical Research. Back at camp after a hard trek, he found a co-worker in his usual quarters. So he slept in a new house built on bamboo poles. He laid his bullsack and mosquito curtain on the wooden floor. Overhead was a roof "formed of great dry leaves of a kind called 'kadjang'."