[135] According to the Catalogue, the following ores are found:—­Variegated copper ore (cobre gris abigarrado), arsenious copper (c. gris arsenical), vitreous copper (c. vitreo), copper pyrites (pirita de cobre), solid copper (mata cobriza), and black copper (c. negro).  The ores of most frequent occurrence have the following composition—­A, according to an analyzed specimen in the School of Mines at Madrid; B, according to the analysis of Santos, the mean of several specimens taken from different places:—­

A          B
Silicious Acid  25.800      47.06
Sulphur         31.715      44.44
Copper          24.640      16.64
Antimony         8.206       5.12
Arsenic          7.539       4.65
Iron             1.837       1.84
Lime            in traces    —­
Loss             0.263       0.25
-------     ------
100.000     100.00

[136] According to the prices current with us, the value would be calculated at about $12; the value of the analyzed specimen, to which we have before referred, $14.50.

[137] In Daet at that season six nuts cost one cuarto; and in Nags, only fifteen leagues away by water, they expected to sell two nuts for nine cuartos (twenty-sevenfold).  The fact was that in Naga, at that time, one nut fetched two cuartos—­twelve times as much as in Daet.

[138] N. Loney asserts, in one of his excellent reports, that there never is a deficiency of suitable laborers.  As an example, at the unloading of a ship in Iloilo, many were brought together at one time, induced by the small rise of wages from one to one and one-half reales; even more hands than could be employed.  The Belgian consul, too, reports that in the provinces where the abaca grows the whole of the male population is engaged in its cultivation, in consequence of a small rise of wages.

[139] An unfinished canal, to run from the Bicol to the Pasacao River, was once dug, as is thought, by the Chinese, who carried on commerce in great numbers.—­Arenas, p. 140.

[140] La Situation Economique de l’Espagne.

[141] Lesage, “Coup d’Oeil,” in Journal des Economistes, September, 1868.

[142] From barometrical observations—­

m. 
Goa, on the northern slope of the Isarog       32
Uacloy, a settlement of Igorots               161
Ravine of Baira                             1,134
Summit of the Isarog                        1,966

[143] The skull of a slain Igorot, as shown by Professor Virchow’s investigation, has a certain similarity to Malay skulls of the adjoining Islands of Sunda, especially to the skulls of the Dyaks.

[144] Pigafetta found Amboyna inhabited by Moors (Mohammedans) and heathens; “but the first possessed the seashore, the latter the interior.”  In the harbor of Brune (Borneo) he saw two towns; one inhabited by Moors, and the other, larger than that, and standing entirely in the salt-water, by heathen.  The editor remarks that Sonnerat ("Voyage aux Irides”) subsequently found that the heathen had been driven from the sea, and had retired into the mountains.