PLATE 1 





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A, B. Two views of reef off Loggerhead Lighthouse, as seen at extreme low tide on June 6, 1910. Heads above water are 

 Orbicella annularis. The alcyonarian Rhipidopirgia fiabellum and Plexaura sp. are also shown. 



C, D. Two views of storm-proof live-car in which tiles bearing attached planulae were planted. C. Before launching, 

 showing how tiles are fastened. D. After launching, showing its appearance in water. 



