P U E F A C E. 



The publication of the Catalogue of Madreporarian Corals, which was uiuler- 

 taken by Mr. George Brook, and of which the first part appeared in 1893, 

 was, unhappily, interrupted by the premature and muchdamented death of 

 that accomplished zoologist. 



In this emergency, Dr. Giinther, then Keeper of the Zoological Depart- 

 ment, was fortunately al)le to engage the services of Mr. H. M. Bernard, by 

 whom the present volume has been prepared. The Collection lias continued to 

 increase, and the specimens recently obtained in expeditions to coral-bearing 

 seas, undertaken by Professor A. C. Haddon, Mr. J. J. Lister, and especially 

 ^Ir. W. Saville-Kent, combined with those already in the Museum, have resulted 

 in the incomparable series of the genera Turbinaria and Astrcvopora describetl 

 in this volume. 



As in the case of the first volume the author's photographs have been 

 reproduced by the collotype process, the work having been executed with great 

 care by Messrs. Morgan and Kidd, of Richmond, Surrey. Three lithographed 

 plates by M. Berjeau have also been added in order to show the microscopic 

 details referred to in the text, which the collotype process is not adapted to 

 reproduce. 



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