Cartesian axiom, [222]

Cartilage bones, [134]

Cartilaginous skulls, [134]

Catastrophism in geology, [80], [249]

Catholicism, [123], [214], [247]

Cells, [52], [53]

Cephalous molluscs, [58], [59]

Chalk, [266]

Challenger expedition, [15]

Chalmers, Dr. Thomas, [80]