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The Kuching River has a very fine swamp at its mouth 
and the swamp extends back for a distance of about fourteen 
miles. At Santubong, near the mouth of the River, there have 
been large cutch-works. 
The Lundu and Samatan, although not very large rivers, 
have finely developed swamps in their valleys. 
The Sambas River has a large swamp area about its mouth. 
The Kapoeas, much the largest river of southwest Borneo, 
is tidal for about one hundred and fifty miles. It has a large 
delta and extensive swamp area. There are large cutch works 
near Pontianak. 
Several other rivers of west and south Borneo are said to 
have large areas of mangrove swamp. 
The Barito River has a swamp area covering several hundred 
square miles. 
The Straits of Pulo Laut are bordered by large mangroves. 
In south-east Borneo the principal swamp-area is said to be 
near the mouth of the Pasir River. 
In East Borneo, the Koetei River has a swamp-covered delta, 
several hundred square miles in area. 
The Berouw and Boeloengan Rivers have also swamp-covel™ 
ed deltas. 
The Islands of Tarakan, Noenoekan and Sebattik contain 
highly developed swamps. 
From Boeloengan north to Cowie Harbor there is a conti- 
nuous swamp, which is probably the largest in the whole 
region. It includes the country about the mouths of the Boe- 
loengan, Sesajab, Sembakong and other rivers and several large 
island swamps. 
Along the Kinabatangan River, there is a swamp which is 
said to be forty or fifty miles in length and of considerable width. 
On Sandakan Bay there is well developed mangrove; and, 
the largest cutch-factory in Borneo is located at Sandakan. 
On Marudu Bay, there is a good supply of mangrove and 
one cutch-factory is located on the Bay. 
Besides the places mentioned, there are quite a number of - 
