NO. 17 SMITHSONIAN EXPLORATIONS, IQI16 29 
consist of shells, detritus, sand and vegetable matter, and to be 
everywhere more or less consolidated to the depth of from six to 
eighteen inches. The consolidation was such that in many places it 
was very hard to penetrate the crust with an ordinary mattock. 
Within this crust, on breaking parts of it off and turning them over, 
were found numerous human bones, including some more or less 
defective skulls. Beneath the crust was white sand, which also con- 
tained many bones, with a few Indian ornaments and fragments of 
pottery. The consolidated crust differed in composition. For the 
larger part it was coquina, of just about such a composition as beach 
accumulations along the sea; but in other places the solidified part 
consisted almost entirely of white sand, while in still others it was 
a dark concretionary mass enclosing shells, sand and vegetable matter, 
besides the bones. The human bones, though evidently more or less 
changed, were not yet petrified; and the mound as a whole appears 
to have no claim to antiquity greater than perhaps a few hundred 
years; but its surface offers a fine example of what favorable con- 
ditions can accomplish in no great space of time in the way of con- 
solidation and inclusion in rock of human remains. 
A series of interesting specimens from the mound are now on 
exhibition in the U. S. National Museum. 
ALES HRDLICKA. 
EXPEDITION TO BORNEO AND CELEBES 
In the report on explorations during 1915 (Smithsonian Misc. 
Coll., Vol. 66, No. 3, pp. 41-44), I said that Dr. Abbott had decided 
to continue the work begun in Celebes by Mr. H. C. Raven, and 
that Mr. Raven had spent part of the summer of 1915 1n Washington 
assembling his outfit. The return journey began late in October. 
On January 4, 1916 Mr. Raven arrived at Menado, Celebes. His 
work from January to the end of August was in the northeastern 
part of the island. Some idea of the conditions under which it has 
been carried on is given by the photographs here reproduced, and 
by the following passages from letters: 
MENADO, CELEBES, January 4, 1916. 
I arrived here this morning and am very glad to have finished my journey. 
As yet I have not definitely planned my route, but it will probably be best to 
start on the extreme end of the peninsula, somewhere in the mountains near 
Likoepang and work along toward Gorontalo. 
LIKOEPANG, CELEBES, March 9, 1910. 
I have been collecting here and at a place a few miles southeast of here since 
January 12th. | am now living in the kampong, but my other camp was in 
heavy forest more than two miles from any home or clearing. The natives call 
‘Teteamoet’”’ and the forest there is the finest | have seen in 
the former place 
