12 CONTENTS. 



PAGE. 



IV. Subsidence Essential to the Making op Thick Stkata. - 352 



V. Deep-Sea Limestones seldom made from Coral Island or 



Eeep Debris - - - - . - - • - 353 



VI. Absence of fossils from Limestone Strata. - 354 



VII. The wide range of the older Limestones not exemplified 



in Modern Coral-reef formations ... 354 



VIII. Consolidation of Coral Rocks. - 356 



.IX. Formation of Dolomite or Magnesian Carbonate of Lime. - 358 



X. Formation of Chalk. ------ 359 



XI. Rate of Increase of Limestone Formations. - 361 



XII. Limestone Caverns. ._._-• 3(32 



XIII. Oceanic Temperature. ------- 364 



XIV. The Oceanic Coral-Island Subsidence. - 366 



APPENDIX. 



I. Geological Time. - ...... 373 



II. Radiates. - - - - - - - - 374 



III. Protozoans. -------- 377 



IV. Names of Species in the Author's Report on Zoophytes. 879 

 V. List of Works referred to, and of Abbreviations. - 389 



Index. .-...-..-.- 391 



