Many contacts with nomadic Aborigines; p.81, 125, 213, 72, 67; Comments on diet; p.89, 106; Native wells found near Lake Mackay; p.268; Native well in Granite Range, N.T.; p.134; Paintings discovered at Thomas Reservoir, Cleland Hills, N.T.; p.185; Warburton Range, W.A., observed a group of 100 natives gathered for a circumcision ceremony; p.124, 209; Myths concerning water holes; p.137; Contacts Ilpillie - Marlu tribes, near Lake Mackay (possibly Waljbiri); p.81; contact with Warramulla tribe, south of Lake Mackay