Note 56 — Chapter I · DEFINITION AND DISTINCTION FROM KINDRED PHENOMENA.
Reading edition
Letourneau, pp. 423, 355, 356. In a letter we received from Mr. A. C. Kruyt, it is remarked that among the Dyaks and the Toradja of Celebes a slave in some cases rises to the position of a serf; he is then no longer continually in the service of his master, but only has to work at definite periods. ↑