Palaeontology. — “The Proto-Australian Fossil Man of Wadjak, 
Java’. By Prof. Eve. Dusots. 
(Communicated at the meeting of May 29 and September 25, 1920). 
Tjampur Darat or Wadjak, the capital of the district of Wadjak, 
is a village (dessa), south-west of the town of Tulung Agung, and 
about in the meridian of the Wilis-summit. There the plain of Kediri 
has penetrated, past Mount Kelut, into the Gunung Kidul — the 
Southern mountain range —, and has obtained a steep Eastern 
boundary. The origin of this abrupt breaking off of the Tertiary 
lime-stone mountains has been attributed, no doubt rightly, by 
VERBEEK and Frnnema to a fault running along that escarpment, 
through Tjampur Darat or Wadjak and Gamping *). In this southern 
continuation of the plain of Kediri, separated from the Indian Ocean 
by a mountain tract only 3 kilometers broad, lies the Rawa Bening 
(Clear Lake), now for the greater part a marsh, the water of which 
flows off through the Kali Tjampur, which, after uniting with the 
Kali Bendo, coming from the West, to form the Kali-Ngrowo, falls 
into the Brantas on the North of Tulung Agung. Repeated eruptions 
of Kelut and other voleanoes must gradually have raised the bottom 
of the lake with voleanic ashes. And while in the similar deposits 
which were formed downstream, the river easily kept its bed deep, 
the lake, which was probably very large at first and extended as 
far as the foot of the lime-stone rocks, had to diminish in extent and 
depth in course of time. Possibly the upheaval of Southern Java 
may also have contributed to this effect. 
On the slope of that part of the mountain that extends, almost 
rectilinearly, over a distance of 800 meters in W.S. W. direction, 
immediately on the south of Tjerme and at 2 kilometers distance 
S.5. W. of Tjampur Darat, fossil human bones were found in 1889 
and 1890. The plain lies there at the foot of the mountain 90 meters 
above the level of the sea, the plateau more than 140 meters higher, 
i.e. more than 230 meters above the level of the sea. Near the top 
the rock rises up almost vertically, for the rest the gradient is on 
an average 300, through the accumulation of fallen lime-stone blocks 
1) Fault N°. XXXI on the map “Cvrr and Dit” of the Geological Atlas of Java 
and Madura. 
66 
Proceedings Royal Acad. Amsterdam. Vol. XXIII. 
