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a deep sea chart shows a complicated topography the adjoining 
coasts must show signs of upheaval (in tropical regions, as a rule, 
elevated coralreefs), and where this is not the case one must expect 
no evidence of importance in favour of the upheaval of the adjoining 
coasts. 
If my suggestion is correct that folding at a certain depth is the 
cause of the simultaneous origin of both deep sea-basins and the 
elevation of the islands, the following phenomena would result: 
1. The elevated islands would be grouped in rows, for they are 
nothing but ‘the elevated though fractured strips of land on top of 
the saddles of the deeply seated folds. The trend of the rows of 
islands would indicate the line of strike of such folds, examples of 
which may be seen in the rows at Soemba-Timor-Timorlaut-Kei- 
Ceram-Buru; as also at Soembawa-Flores-Wetter etc. 
2. The deep sea-basins would be elongated in one direction more 
or less exactly parallel to the adjoining rows of islands, because 
they are formed on top of the troughs of the deeply seated folds. 
For example I may quote the case of the Savoe-sea, the depth near 
the island Kambing, the Timor-sea, the Weber-depth, etc. 
3. Near the surface, in the zone of fracture, one would also expect 
to find faults, which had broken the connection in the sides of the 
folds. Such faults would exist between the deep sea-basins and the 
elevated islands; and where the faults had repeatedly cut away the 
land at the coast, the development of elevated fringing coralreets 
would have heen hampered. This has taken place both at the north 
and the south coast of the island of Timor, and also at the islands 
of Moa and Leti. 
4. All the islands of one row would be elevated, but the upheaval 
would have been very unequal, as can be observed if the islands 
are compared one with the other, or if an examination be made of 
different portions of one island. This is indeed the case in all the 
elevated islands, as can be principally deduced from the desriptions 
in VERBEEK’s Molukken-verslag. 
5. There is no reason why faults should occur between adjoining 
islands belonging to one and the same elevated range (saddle of a deeply 
seated fold), which would hamper the development of elevated 
coralreefs. It is possible that this circumstance might explain why, 
at the western extremity of Timor, elevated fringing coralreefs 
appear to be so well developed. 
6. Where the deeply seated fold, shows sudden bends or curves, 
