Bitstone, 30. Bodies, 37. Bone Ash, 35. Bone China, 43. Borax, 34. Boric Acid, 34. Boric Acid Analysis, 34. British Rocks, Analyses of, (Table) 11. Bubbling, 72. Carbon in Clay, 19. Centrifugal Apparatus for Analysis of Clay, 26. Change of Temperature Effect on Enamel, 80. Chemical Analysis of Rocks, 9. Chert, 30. China Clay, 12. China Clay Analyses, 12. China Clay, Specific Gravity of, 12. Chlorite, 9. Classification of Pottery, (Table), 82, 83. Clay, 12. Clay Analysis, 17. Clay, Centrifugal Apparatus for Analysis Crooked Ware, 74. Clay, Proximate Analysis of, 21. Clay, Refractoriness of, 39. Clay, Schoene Apparatus for Analysis