These nests are chiefly found in the Calamities group of islands, particularly in Busuanga Island. The Sulu Archipelago and Palaúan Island also furnish a small quantity of edible birdsʼ-nests.

Balate, or Trepang, is a species of sea-slug, for which the natives find a ready sale to the Chinese at good prices. The fish is preserved by being gutted, cooked, and sun-dried, and has a shrimp taste. It is found in greatest quantities off the Calamianes and Palaúan Islands.

Sapan-wood (Caesalpina sappan) (Tagálog, Sibucao, or Sápang), of an inferior quality compared with the Pernambuco wood, is a Philippine product found in most of the large islands. It is a short, unattractive tree, with epigeous branches spreading out in a straggling manner. The leaves are small and sparse. The wood is hard, heavy, crooked, and full of knots. It sinks in water, and is susceptible of a fine polish. It is whitish when fresh cut, but assumes a deep red colour on exposure to the air. The only valuable portion is the heart of the branch, from which is taken a dye known in the trade as “false crimson,” to distinguish it from the more permanent cochineal dye. The whole of the colouring-matter can be extracted with boiling water. It is usually shipped from Manila and Yloilo as dunnage, a small quantity coming also from Cebú. For figures of Sapan-wood shipments, vide Chap, xxxi., “Trade Statistics.”

The Saps of certain Philippine trees serve to give a polished coating to the smoothed surface of other woods. The kind which I have experimented with most successfully is that of the Ipil tree (Eperna decandria). This gives a glazed covering very similar to Japan-ware varnish. It takes better to the wood in a cold climate than in the tropics. I have tried it both in the Philippines and in Europe.

Dye Saps are also numerous—for instance, that of the species Marsedenia, called in Bicol dialect Payanguit and Aringuit, with which hemp can be dyed blue; the juice of the skin of a root, known in Bicol as Morinda, is used for dyeing hemp red; the sap of the Talisay tree (Terminalia mauritiana) gives a black dye, and that of the Calumpit tree (Terminalia edulis) is a good straw-coloured dye.

Hardwoods.—These Islands are remarkably rich in valuable timber-trees. For some of the details which I will give of the properties and applicability of the varieties in general demand, I am indebted to Mr. H. G. Brown (of H. G. Brown & Co. Limited,[8] steam saw-mill proprietors in Tayabas Province), admitted to be the most experienced person in this branch of Philippine trade.

Aranga (Homalium) gives logs up to 75 feet long by 24 inches square. It is specially used for sea piling and all kinds of marine work which is subject to the attacks of sea-worm (Teredo navalis).

Acle (Mimosa acle) gives logs up to 32 feet by 28 inches square. It is strong, tenacious, and durable, whilst it has the speciality of being difficult to burn, and is much used in house-building; it polishes well, and is much prized by the natives. It is supposed to be identical with the Payengadu of Burmah.

Anagap (Pithecolobium montanum, Benth.) gives logs up to 18 feet long by 16 inches square. It is sometimes used for house furniture and fittings and for other purposes where a light durable wood is wanted and is not exposed to sun and rain.

Apiton (Dipterocarpus griffithi, Miq.) gives logs up to 70 feet long by 24 inches square. It contains a gum of which incense is made, is light when seasoned, works well, and will serve for furniture and general joinerʼs purposes.