Report of the systematic study of the geology and ground-water resources of Lanai and Kahoolawe as part of the geological survey by United States Department of the Interior.

Molokai consists of two major volcanic principal parts: East Molokai volcanic series and the West Molokai volcanic series.

Reports on the domestic water supply derived from rain caught from roofs and some ground wells. Overall, the island has high aridity, unfavorable geologic structures, continuous deposition of salt spray, and abundant authigenic salts in the lake beds.

Well written and superbly illustrated, this work includes chapters on tectonic plates, volcanoes, erosion by water and wind, the ocean, ice and glaciers, earthquakes and tsunamis.

This volume brings together recent primary source materials on major themes in Hawaiian natural history: the geological processes that have built the Islands; the physical factors that influence the Island's terrestrial ecosystems; the dynamics of the sea that support coral reefs, fish, and mollusks; the peculiarities of animals and plants that have evolved in the Islands and are found nowhere else; and the human impact on the land, plants, and animals.