Linked from
The 9 pages that link to Guano Islands Act, each with the reason it gives.
GuanoRelated: The law tied guano demand to American island claims and overseas expansion.
Howland IslandRelated: The law provided the basis for the United States to claim Howland Island.
Baker IslandRelated: The act provided the legal basis for the U.S. claim to Baker Island.
Johnston AtollRelated: The act provided a legal basis for an early American claim to the atoll.
Midway AtollRelated: The act provided the legal basis for an early U.S. claim to Midway.
Navassa IslandRelated: The act provided the legal basis for the American claim to Navassa.