The Balangingi Group lies east of the meridian of 121° 28′ east, and to the south of the Basilan Group. It has nineteen islands, the principal ones of which are Tonkil, Balangingi, Simisa, Tatalan, Bukutwa, Bulim, Bangalaw. The islands of this group are small and low and do not exceed 38 square miles in area. Their inhabitants are Samals. The people of Balangingi and Tonkil were notorious pirates. They built strong forts and once surpassed all other Samals in power, political organization, and prosperity.
The Sulu Group lies west of the Balangingi Group and north of the parallel of 5° 46′ north. Its western boundary may be sent at the meridian of 120° 46′ east. It consists of about twenty-nine islands with a total area of 380 square miles. The principal island of this group is Sulu. To the north of Sulu lie Pangasinan, Marongas, Kabukan, Bubwan, Minis, Hegad, and a few others; to the east lie Tulayan, Kapwal, and Bitinan; to the south, Pata and Patyan.
Tulayan lies north of Tandu and is separated from it by a narrow strait. It has a good harbor on the southern side. It was ceded to the English in 1763 by Sultan Alimud Din I out of appreciation of the favor done in releasing him from prison in Manila and reinstating him as Sultan of Sulu. The English, however, never made any use of the island.
Pata is, next to Sulu, the largest island of the group. It is mountainous and well populated. The description of the Island of Sulu is given separately at the end of this chapter.
The Pangutaran Group lies west of the Sulu Group and north of the sixth parallel. It has fourteen islands and an area of 72 square miles. The principal members of the group are Pangutaran, Pandukan, North Ubian, Laparan, and Tababas or Cap. They are all low and flat with little more than trees visible from the sea. They are surrounded by coral reefs and sand banks, which in places form lagoons which can be entered only at high water. The drinking water in these islands is brackish in the hot season and has a black color during rains. Very often the people go as far as the Island of Sulu to get good water. Pangutaran is the fifth island in the Archipelago in size, being 11 miles long, north and south, and 8 miles wide, from east to west. Its chief settlement is Maglakub. Its northern and eastern coasts are the best populated. The inhabitants of this group are chiefly Samals; few Sulus are found mixed with them. Coconut trees and tapioca plants grow well in places.
The Siasi Group lies to the south and west of the Sulu Group, east of the meridian of 120° 33′ east, and north of the parallel of 5° 24′ north. It has thirty-eight islands with an aggregate area of 77 square miles. Its population is estimated at 20,000. The principal islands of this group are Siasi, Pandami, Lugus, Tapul, Laminusa, and Kabinga’an. The first four are volcanic islands of some size; the last two are low and flat. Tapul is the nearest island of the group to Sulu. It is more or less round in circumference and rises in the middle to a picturesque conical peak 505 meters above the sea. It is about 5 miles in diameter and is separated from Lugus by a very narrow channel. The island is 8 miles south of Sulu Island, is well cultivated, and appears very attractive from the sea. It supports a considerable population and has several fairly prosperous settlements. The people are mostly Sulus; they are very warlike and take great pride in their traditions.
The chief settlement of this island is Kanawi, where lives Sharif Alawi, the strongest chief on the island. Buhangin Hawpu, Pangpang, and Pagatpat lie on the southern coast, east of Kanawi. The settlements on the western coast are, beginning at the south, Suba Pukul, Kawimpang, Tigbas, Banting, Kutabatu, Bagus; on the northern coast, Kawimpang, Pangdan; on the eastern coast, Sampunay, Tulakan.
Lugus is a larger island. Its long diameter extends 9 miles east and west, and it has an area of 18 square miles. It is hilly and rough; but the northern shore is fairly well cultivated.
The chief settlements are on the western coast. They are Basbas, where Datu Amilusin used to live, and Bulipungpung. On the north lie, beginning at the east, Gapas, Ba’it-ba’it, and Hawit, the place of Maharaja Sharafud Din; on the east Kalu’ukan, the residence of Panglima Salahud Din; and on the south Aluduyung, and the Island of Munupunu.
Siasi and Pandami are separated by a narrow channel which forms a good anchorage for vessels. Siasi is prettier than Tapul in form and is larger, but not equally wooded. It has an isolated, conical, and beautiful peak in the center rising to a height of 509 meters above sea level. The island is about 7 miles in diameter and has an area of 39 square miles. Reefs and numerous islets form a fringe off the east and south coasts and these teem with Samal houses. It is thickly settled, fairly well cultivated, and has, in proportion to its size, a considerable number of horses and cattle. The majority of the people are Samals, but the chief rulers and some of their retinues are Sulus. In this respect this island follows the general rule governing all the larger islands of the Archipelago outside of Sulu Island. The town of Siasi is on the western side. It lies on the Pandami Channel and has a good harbor. A spring rising at the base of the western slope of the mountain supplies the town with fresh water.