Index 



ABSENCE of fossils from pre-Cambrian 

 rocks, 28 



Africa, the middle of the land hemi- 

 sphere, 50 



Agassiz, Prof. A., 13 ; area of sedi- 

 mentation in Gulf of Mexico, 37 ; 

 tertiary limestone, 125 ; talus 

 growth in coral reefs, 126 



Agassiz, Prof. L., on glaciers, 245 



Age of the earth, Kelvin, 1, 9, 16, 18, 

 20, 64 ; G. Darwin, 7, 16 ; J. Joly, 

 9, 16, 21 ; estimated from thickness 

 of stratified series, 24 ; and radium, 

 63 ; in relation to biology, 25-28 ; 

 and flints, 157 



Agricola, G., 241 



Ainsworth, theory of coral atolls, 95 



Ajka beds, 203 



Allan, Dr., rate of growth of corals, 

 40 



Amalitzky, Devonian and Permian 

 freshwater shells, 196 



Ananchytes, 158 



Ancient sediments, unaltered state of, 

 29 



Ancylus lake, 207 



Andes, Jurassic zones, 274 



Apstein, Dobersdorf lake, 174 



Apus, 192 



Aral, sea of, 215 



Area scaphida, 175 



Atlantic, a secondary ocean, 50 

 Atmosphere, primaeval, 5; condensation 

 of, 9 



BABYLON, 306 



Baikal, lake, 215 



Baltic, 173, 207 



Banded flints, 152 



Barus, C., 12 ; coefficient of expansion 



of diabase, 60 

 Bathanalia, 209 

 Bathymetrical limit of coral growth, 



129 

 Beaumont, Elie de, dodecahedral form 



of earth, 55 

 Bertrand, M., tetrahedral form of 



earth, 55 



Beudant, experiment by, 172 

 Bicycle, evolution of, 255 

 Birgus, the robber crab, 106 

 Blytt, Prof., estimate of length of 



Tertiary sera, 36 

 Bonney, -Rev. Prof. T. G., Archeen 



rocks, 24 : coral reefs, 38, 99, 121 

 Bore hole in Funafuti, abandonment 



of, 116 ; successful boring, 118, 122 

 Bourne, A. G., Limnocodium, 211 

 Bouvier, 200 



Boys, Prof., comets and radium, 64 

 Brackish-water fauna, 208 

 British freshwater fauna, 167 



