1014 
and smaller débris, and there are also some small irregular terrace- 
shaped projections. Where the slope is not very steep and on the 
plateau, the lime-stone is often covered with a yellowish clay, con- 
taining more or less humus, a weathering product, no doubt, of 
voleanic ashes fallen in former times. In such places where it is 
somewhat protected against the direct action of the rain, this clay, 
impregnated with calcite, can unite with fragments of lime-stone to 
a breccia. Also many bones were wholly or partly inclosed in the 
hardened clay of such a breccia. For the rest they lay in the loamy 
clay, only superficially covered with a calcareous concretion. 
The first find dates from 1889. In the beginning of this year, 
when I was carrying out excavations in caves in the surroundings 
of Pajakombo in the Padang Highlands in Sumatra, Dr. C. Pr. 
SLUITER, then at Batavia and member of the board of the ‘“Natuur- 
kundige Vereeniging in Nederlandsch-Indié”, had the kindness to 
send me some fossil bones. These fossils had been found by Mr. B. D. 
VAN RierscHoreN when exploring the described lime-stone rocks for 
the establishment of marble quarries’), and had been sent to the said 
Society. Mr. van RigerscHoten thought these bones to be remains of 
“the skull of a man or a manlike animal”. After having prepared 
and joined the very fragmentary remains, I recognized in them the 
not entirely complete skull with right angular part of the lower 
jaw’) and a few other fragments of the skeleton of a fossil man 
greatly deviating from the Malay type. The resemblance with the 
Papuan type seemed closest to me °). 
This important find of Mr. van RierscHOreN induced me to carry 
out excavations near Wadjak the following year. The finding-place 
of the Wadjak skull I appeared to lie near the middle of the described 
part of the mountain slope, and at about 50 meters above the plain, 
in a terrace shaped projection, formed by blocks and smaller stones 
with breccia and clay *). Here parts were found of a second fossil 
skull, Wadjak II, with unmistakably similar characters as the first, 
whieh, like the first skull, after further preparation, presented an 
even closer resemblance with the Australian of the present time than 
!) The marble exploitation company, formerly called ‘‘Wadjak”, is now conti- 
nued under the name of “Marmoyo”. 
2) Natuurkundig Tijdschrift van Nederlandsch-Indié. Batavia. Deel 49. (1889), 
p. 209—211. 
8) The rest of the lower jaw and most of the crowns of the teeth of the upper 
jaw must have got lost in the digging. 
4) | had at first erroneously taken an interstice between blocks for a crevice in 
the rock. 
