Glaciation, the process of becoming covered with glaciers.
Glacier, an immense mass of ice, or snow and ice, formed in the region of perpetual snow, and moving slowly down mountain slopes or valleys.
Gneiss, a crystalline rock, consisting of quartz, feldspar, and mica.
Herbivora, that order of animals which subsists upon herbs or vegetables.
Homologous, having the same typical structure.
Humerus, the bone of the arm nearest the shoulder.
Hybrid, that which is produced from the mixture of two species.
Ilium, the upper part of the hip bone.
Jade, a hard and compact stone, of a dark green color, and capable of a fine polish.
Lambdoidal, the suture which connects the occipital with the parietal bones.