The navy of Hiram - i. e., Solomon’s navy in the Red Sea, which was chiefly manned by subjects of Hiram. (see the marginal reference).
Almug-trees - Probably the sandal-wood tree (pterocarpus santalinus). The wood is very heavy, hard, and fine grained, and of a beautiful garnet color, which, according to the rabbinical writers, was the color of the algum. One of the names of the red sandal-wood, in its own native country (India) is “valguka,” a word of which “algum” is a natural corruption.