The supply of mangrove billets for firewood, at points where it can be easily and cheaply shipped, is very large in the Andamans, and it is thought possible that a very profitable and lasting Indian trade might be established in firewood. At present, no trade exists at all in gurjan oil, and, as above stated, the supply of _Gurjan_ trees is unlimited. It is believed that the supply of _Gurjan_ in India has largely been worked out, therefore that in the Andamans should become valuable. A small quantity of gurjan oil is extracted in the Settlement and used chiefly for mixing with earth oil for application to shingle roofs. The uses to which this oil is put are so many that the possibility of a profitable trade in the Andamanese supply seems to be beyond question. For the construction of houses, bridges, and jetties, the following species are chiefly used in the Settlement:-- _Padouk._--Posts, trusses, purlins, common rafters, battens, floor and wall planking, shingles, doors, and windows. _Koko._--Joists, common rafters, battens, fillets, floor-planking, doors, and windows. _White Chuglam._--Floor and ceiling planking. _Pyimma._--Posts, joists, common rafters, purlins, frames, floor and wall planking, shingles. _Lakuch and Mowha._--Posts, girders, beams, and purlins. _Gangaw._--Posts, girders of bridges, 3-inch planking over sluices, and sluice-gates. _Thitmin._--Inside walling and jambs, shelves, and any light work. * * * * * In boat-building the following species are used by the Marine Department:-- _Padouk._--Hull planks, keel, stem and stern posts, ribs of large boats, and thwarts. _White Chuglam._--Oars. _Pyimma._--Thwarts. _Thitmin._--Masts and spars. _Chooi._--Ribs of small boats. For furniture, _Padouk_ and _Koko_ are chiefly used. _Didu_ is the only species utilised for the manufacture of tea-boxes at Port Blair. Bark for tanning purposes is obtained from various species of _Mangrove_ and from _Terminalia procera_. _Mangrove_ also gives the most suitable wood for use in the furnaces of the Settlement steam-launches. Firewood for ordinary purposes is obtained from all hard-wood species other than those in demand for timber. Gurjan _oil_ is obtained from three species of _Dipterocarpus_. The tapping operations extend from 1st January to 30th April. The daily outturn averages 7 lbs. per man, the greatest flow of oil taking place in the month of March. The mixture used for steeping house-shingles consists of 3 lbs. of gurjan oil to 1 lb. of earth oil and 1 lb. of Alford's metallic paint. The minor produce of the Andamans comprises several useful species of bamboo and cane, used in house-building and in the construction of furniture, rattan roots for walking-sticks, and two species of palm (_Nipa fruticans_ and _Licuala peltata_), the leaves of which are used for thatching. The inner bark of _Sterculia villosa_ is used for making ropes for timber-dragging purposes.