Note 78 — The Fourth Book.
Reading edition
The Camels of the hot countries are not fastened one to the tail of the other as in cold climates, but suffered to go at their will like herds of cows. The Camel driver follows singing, and from time to time giving a sudden whistle. The louder he sings and whistles, the faster the Camels go, and they stop as soon as he ceases to sing. The Camel-drivers to relieve each other sing alternately, and when they wish their beasts to brouze for half an hour on what they can find, they amuse themselves by smoking a pipe, after which beginning again to sing, the Camels immediately proceed.
Tavernier.