[Ship building advantages.] Notwithstanding, however, the impediments above stated, as it is undeniable that abundance of suitable timber is to be obtained, and as the conveyance of the remainder of the necessary naval stores to the Philippine Islands is shorter and more economical than to the coast of California, it possibly might answer, at least, many mariners are of this opinion, in case it is deemed expedient to continue building at San Blas the brigs and corvettes necessary for the protection of the military posts and missions, situated along the above coasts, to order them preferably to be built in Cavite giving timely advice, and previously taking care to make the necessary arrangements.

[Gold.] Gold abounds in Luzon and in many of the other islands; but as the mountains which conceal it are in possession of the pagan tribes, the mines are not worked; indeed it may be said they are scarcely known.  These mountaineers collect it in the brooks and streamlets, and in the form of dust, offer it to the Christians who inhabit the neighboring plains, in exchange for coarse goods and fire-arms; and it has sometimes happened that they have brought it down in grains of one and two ounces weight.  The natives of the province of Camarines partly devote themselves to the working of the mines of Mambulao and Paracale, which have the reputation of being very rich; but, far from availing themselves in the smallest degree of the advantages of art, they content themselves with extracting the ore by means of an extremley imperfect fusion, which is done by placing the mineral in shells and then heating them on embers.  A considerable waste consequently takes place, and although the metal obtained is good and high colored, it generally, passes into the hands of the district-magistrate, who collects it at a price infinitely lower than it is worth in trade.  It is a generally received opinion that gold mines are equally to be met with in the Province of Caraga, situated on the coasts of the great Island of Mindanao, where, as well as in other points, this metal is met with equal to twenty-two karats.  The quantity, however, hitherto brought down from the mountains by the pagan tribes, and that obtained by the tributary Filipinos, has not been an object of very great importance.

[Copper.] Well-founded reasons exist for presuming that, in the Province of Ilocos, mines of virgin copper exist, a singular production of nature, or at least, not very common, if the generality of combinations under which this metal presents itself in the rest of the globe, are duly considered.  This is partly inferred from the circumstance of its having been noticed that the Igorots, who occasionally come down from the mountains to barter with the Christians, use certain coarse jars or vessels of copper, evidently made by themselves with the use of a hammer, without any art or regularity; and as the ignorance of these demi-savages is too great for them to possess the