Graciosa, island of.
Grammars, American, collected by the author's brother.
Granite: formations. varieties of. of Cape Finisterre. of Guiana. islands. mountains. rocks.
Gravina, Admiral.
Greenland: language of. inhabitants of.
Greenstone, strata of.
Grenada, New: connexion of, with foreign colonies. commerce of. extent of. population of. mountains of.
Grenada, island of.
Grotto: of Caripe. of Muggendorf.
Grottoes: formation of. varied structure of, in both hemispheres.