Borings by molluscs—23, 34, 43, 71-73, 78. Borings by shells at two levels—72-73. _Borsonia_—37. Boulders in gravel terraces—76. Brackish-water shells—84. Brain of archæoceti—52, 87. Branches wanting on fossil trees—64-65. British Museum collections—59. Brown coal—53. Brown, Sir Hanbury—11, 13, 80, 83, 87. Bryozoa—36, 52. _Bubalis_—80. Bugti beds (Sind)—70. Bullen Newton, R.—76. C Cairo—9, 16, 28, 49, 56, 64, 65. Calcareous beds in lake—12. Calcareous grits—33, 53, 56-63. Calcareous sandstone—25, 42-43, 45, 50-51, 59, 72. Calcite—51, 58-59, 61-62. _Callianassa_—36, 58. _Calyptræa trochiformis_—43. Canals—11-12, 18-19, 29, 73. Canals, Mud brought to lake by—14. _Canis_—80. Cape Rayan—21, 36. Carbonaceous clays—46. Carbonaceous matter—42, 51. _Cardita_—38-39, 47. _Cardita acuticostata_—90. _Cardita_ aff. _carinata_—52. _Cardita_ aff. _depressa_—52. _Cardita ægyptiaca_—46. _Cardita fidelis_—90. _Cardita fajumensis_—35, 46, 50-52, 90. _Cardita_ cf. _gracilis_ and _depressa_—52. _Cardita mokattamensis_—90. _Cardita Mosis_—90. _Cardita_ aff. _triparticostata_—52. _Cardita Viquesneli_—35, 45-46, 90. _Cardium_—59. _Cardium desertorum_—90. _Cardium Schweinfurthi_—35, 43-44, 50-51, 90. _Carolia_—36-39, 48, 50, 52. Carolia Beds—33, 48-53, 74 (rolled blocks). _Carolia placunoides_—35-36, 38-39, 45-49, 51-52, 73, 89. _Cassidaria_—51. _Cassidaria nilotica_—51. _Cassidaria_ aff. _nodosa_—51. Casts of crocodilian skull air passages—52. Casts of shells—39, 44, 51, 59, 63. Cavernous limestone—37. Celestine—48. Cellular weathering of sandstone—46. Central African character of Fayûm shells—60. Central Area of Fayûm—24-25. Centres of independent evolution—69. _Cerithium_—39, 46-47, 53, 57-58. _Cerithium crispum_—58. _Cerithium fodicatum_—37. _Cerithium perditum_—58. _Cerithium tiarella_—58. Cetacea—9, 43-44, 47, 49, 87. Chalcedony—61. Chalky limestones—40. Charcoal, Natural—51, 53. Chelonians—34, 44, 54, 62. Chert, Tabular—61-62. Cherty limestones—57, 59, 61. _Chicoreus anguliferus_—76. Claudius Ptolemy—83. _Clavellithes longævus_—35, 45-46. Clays—12, 15, 18, 20, 22-25, 28-30, 33-53, 55-59, 61-62, 74-76, 80, 82. Clays, Variegated—62. Clayey marls—37, 53, 62. Clayey sands—29, 36-37, 42, 58. Clayey sandstones—36, 50, 57, 62. Clayey shales—77. _Cleopatra pirothi_—81. _Cleopatra pirothi_ var. _unicarinata_—81. _Cleopatra bulimoides_—81, 84. Cliffs—12, 14-15, 20-24, 27, 32, 36, 40-41, 45-46, 48-50, 53, 56, 73-74, 84-85. Climate, Variations in Egyptian—81. Coal, Thin seam of—53. Coast-line of old continent—54. Colossi at Biahmu—84. Concretions—35-36, 38-40, 42-46, 50, 72. Concretionary sands—58. Concretionary sandstones—35, 46, 49, 51, 55-56, 62.