In March, 1899, the author left England, in pursuance of his appointment as Balfour Student of the University of Cambridge, with a commission to explore and investigate the Coral Reefs of the Laccadives, Maldives and Ceylon. This volume is based mainly on observations and collections made during the resulting expedition
With Plates XXVI - C, Text-Illustrations 120 - 154 and Index I and II.