Puerto Rico.
Pulo Anna.
PUMICE floated to coral-islands.
Pylstaart.
PYRARD DE LAVAL, astonishment at the atolls in the Indian Ocean.
QUOY AND GAIMARD, depths at which corals live. Description of reefs applicable only to fringing-reefs.
RANGE of atolls.
Rapa.
Rearson.
RED SEA, banks of rock coated by reefs. Proofs of its recent elevation. Supposed subsidence of.