TABLE OF CONTENTS. 



PAGE 



Introduction 39 



Percentage of ingredients according to source 2 4° 



Sizing of sediments 2 4 



Bottom deposits of the Murray Island reef • 2 43 



Sources of the material 2 44 



Distributing and sorting agents 2 45 



Mechanical and chemical analyses 2 4° 



Summary on the Murray Island samples • ■•■• 2 49 



Composition of two Murray Island samples according to source of material, by Marcus Isaac Goldman . 249 



Chemical composirion 2 54 



Bottom samples from the Bahamas 2 ° 2 



Samples from behind reef off Cocoanut Point, east side of Andros Island 263 



Comparisons with samples from behind Murray Island reef 2 °4 



Precipitation of CaC0 3 in the ocean and the possibility of its solution in the sea 265 



Finely divided mud from stagnant areas in South Bight 2 ° 8 



Samples from off the west end of South Bight 2 7' 



Shore specimen, north of west end of South Bight 2 74 



Oolitic sand from Great Bahama Bank 2 74 



Globigerina ooze from the Tongue of the Ocean 2 7° 



Elevated Bahaman oolites 2 77 



Summary on bottom deposits of the Bahamas 2 7° 



Bottom samples from Florida 2 °° 



Beach sand from Sands Key 2 °' 



Lagoon samples 2 



Sample from between Loggerhead and Cudjoe Keys 2 °' 



Samples from Marquesas Lagoon 2 ° 2 



Samples from Tortugas Lagoon 2 °3 



Sample from off Key West 28 4 



Elevated oolite $ 



Summary on bottom samples from Florida 28 5 



n \ ■ 2 87 



Conclusions ' 



Foraminifera from Murray Island, Australia, by Joseph A. Cushman 2 »9 



Calcareous alga: from Murray Island, Australia, and Cocos-Keeling Islands, by Marshall A. Howe 291 



Diatoms from Murray Island, Australia, by Albert Mann 2 97 



Richard Bryant Dole: In Memoriam •- ■ •• ■ 2 9 8 



Salinity of ocean water at Fowey Rocks, Florida, by Richard B. Dole and Alfred A. Chambers 299 



The solubility of calcite in sea-water in contact with the atmosphere, and its variation with temperature, 



by Roger C. Wells I 16 



LIST OF PLATES. 



PAGE 



Plate 94. Graphic illustration of mechanical analyses of bottom samples 2 44 



95. Map of Great Bahama Bank and southern Florida, showing position of bottom sample stations. . 262 



96. Murray Island foraminifera ■ ■ • ■ ■ • ■ • • • • 2 9° 



97. Figs. 1, la, Polytrema mineaceum (Linn.); fig. 2, Goniolithon orthoblastum (Heydnch) Howe 296 



98. Goniolithon orthoblastum (Heydrich) Howe 2 9° 



99. Map, Florida keys and reefs, from Key Biscayne to Ragged Keys 2 9° 



TEXT FIGURES. 



PAGE 



Figure 1 Map of Bethel Entrance, Andros Island, Bahamas, showing position of bottom sample stations 



I9 o-i 93 262 



4. Diagrammatic section from Mangrove Cay across the barrier reef, Andros Island, Bahamas. 279 



5. Graph showing daily content of chloride of sea-water at Fowey Rocks and daily precipitation at 



Miami, Florida, September 12, 1914, to October 17, 1915 •.;•.• / ■ \" 3 " 



6. Graph showing daily content of chloride of sea-water at Fowey Rocks and precipitation at Miami, 



Florida, by selected periods during 1914 3 12 



2 37 



