Pigafetta realized the immense size of the Island of Borneo--the second largest island in the world, only New Guinea being of greater area if Australia be considered a continent--he was informed that it took three months to sail round it in a Malay prau. It was a region that produced camphor,[35] cinnamon, ginger, myrobalans,[35] oranges, lemons, water-melons, cucumbers, gourds, and many other vegetables and fruits; buffaloes, oxen, swine, goats, fowls, geese (derived from China), deer, elephants, and horses. [35] The camphor of Malaysia is a crystalline secretion found in the crevices of the bark of a magnificent tree, the _Dryobalanops aromatica_. The camphor more commonly met with in commerce is derived from the bark of a kind of laurel growing in Japan and Formosa. Myrobalans are the fruit of a tall _Terminalia_ tree of the _Combretaceæ_ family. They are plum-like in appearance and very astringent. The kernels are eaten, but the rind is used for making ink and very dark dyes. After leaving Brunei the two ships directed their course towards the Sulu archipelago, which lies between North Borneo and Mindanao. They seem to have made little scruple of behaving like pirates towards any Malay prau which could not offer much resistance. In this way they captured a vessel full of coconuts, which was a great resource to them in the way of food. They found a perfect port for repairing ships in Bungei, one of the Sulu Islands. Here they stayed for forty-two days, everyone labouring hard, their greatest fatigue, however, being the journey backwards and forwards to the forest barefoot (probably because their shoes were worn out) to hew timber for the ship's needs. On the island of Bungei they found many wild boars (of the species _Sus longirostris_), with very long heads 2½ feet in length, and with big tusks. There were also huge crocodiles, and on the seashore immense Tridacna clam shells, the actual flesh of one of these clams (a clam is something like an oyster) weighing as much as 44 pounds. Here also they observed the marvellous leaf-insects, which Pigafetta not unnaturally imagined to be a miracle of nature, leaves which became alive and walked about when they fell to the ground. He kept one of these in a box for nine days, and at the end of that time the leaf-insect was still active, though no doubt it soon died, since he believed it fed on nothing but air.[36] [36] These were no doubt examples of the genus _Phyllum_, insects of the _Phasmidæ_ family (allied to Mantises). The resemblance to leaves in the _Phylli_ is extraordinary, especially in the female insect, even the egg capsules are just like seeds.