Geology. — "On Tertiary Marine Deposits with fossil fishes from 

 South Celebes". By Prof. H. A. Brouwer and Dr. L. F. de 

 Beaufort. 



(Communicated at the meeting of January 27, 1923). 



The Origin and the Age of the Deposits bj Prof. H. A. Brouwer. 



During tlie construction of a road near Patoenoeaiig Asoe E in 

 Soudi Celebes a fossil-fish, of which only the posterior part is pre- 

 served, was found at the surface of one of the detaciied blocks of 

 limestone. Mr. A. Huisman, the engineer who supervised the road- 

 construction, sent me this fragment some time ago, informing me 

 that in spite of further e.xaminalion of the locality, the anterior 

 part of the fish iiad not been found. Tiie block was found near 

 Patoenoeang Asoe E, Section Maros, at the base of steep rocks, 

 about 50 m. above sea-level. 



The limestone splits easily along the plane of stratification and 

 on further examination in my laboratory'), it was found to contain 

 another fossil fish far more complete than the first. Botli were studied 

 by Dr. L. F. de Beaufort. His results are given below. 



The rock in wicli the Clupea and Lutjanus are einbedded is a 

 whitetolight brownish compact limestone, which resembles some 

 types of lithographic limestone from the neighbourhood of Solnhofen 

 and Eiclistatt in Franken, which contain the numerous well-preserved 

 upper-jurassic fossils, among which numerous fishes occur. Under 

 tlie microscope compact limestone proves to be free from foramini- 

 fera or other organic remains. 



As regards their conditions of origin the rocks of Celebes are 

 also very much like the lithographic limestones of the Upper-Jura 

 in Franken. The latter rocks are found to rest in shallow-basins in 

 coarse, nnstratified or rudely stratified limestones, which are reefs 

 on a large scale; the interjacent depressions were filled up with 

 stratified deposits. 



Near Solnhofen etc. these lithographic beds contain various, 

 beautifully preserved organic remains. Fresh- or brackish-water 

 fossils are lacking, but remains of tracks of land-animals are of 



') By Dr. P. Kruizinga, conservator at Delft. 



