Chief islands.—Guam, Rota, Tinian.
Physical appearance of Natives.—Stature higher than that of the other islanders, tendency to corpulence greater.
Intermixture.—Considerable, i.e. with Polynesians, Philippine islanders, Spaniards.
Rota and Tinian are remarkable for containing the remains of massive stone buildings; the original use of which is wholly unknown to the present natives. The same phenomenon will be repeated in Tonga-tabú and Easter Island.
The Mariannes form the most northern portion of Micronesia. The direction will now be due east from the cluster of Goulou; about mid-way between the Pelews and Yap.
OULUTHY GROUP.
Synonym.—Egoy Islands.
LAMOURSEK AND SATAWAL GROUPS.
Direction.—West to east.
Extent.—From 140° to 15° E. L. from Paris. Under 5° N. L.