Do motorists in some desert areas of Africa had its own reasons to be grateful especially drummers. At the end of the 1950s. two French brothers-established cargo transportation by cars in the area Stenlivilya (today - Kisangani). One of them somehow stopped a hundred kilometers from the city, when a puncture and found that he could not do without assistance. His brother arrived the next day with a "new wheel", which was stated in the message delivered drummers. - I know, and the more serious accidents, when much more complex messages sent by "forest telegraph" - says L. Greene. - Two professional elephant hunters once quarreled with the insolent leader and began to fear for the left in the camp down the river guns and ivory. On the predicament in which they came, it was reported in the "talking drums", and hid their property of friendly natives before it was able to capture the leader.