A. Dowar Island seen from the soulliern eonier of Maer Island. 



B. Southeast shore of Maer Island, showing the wide southeast reef-flat and the stone fish-traps 



which were constructed in prehistoric times by the natives. The heavy, straight line drawn m 

 ink across the reef-flat marks the position of line No. 1. along which our ecological study 

 of the corals was made. 



