Camphor, action on Drosera, 209
Canby, Dr., on Dionaea, 301, 310, 313 —, on Drosera filiformis, 281
Caraway, oil of, action on Drosera, 211
Carbonic acid, action on Drosera, 221 —, delays aggregation in Drosera, 59
Cartilage, its digestion by Drosera, 103
Casein, its digestion by Drosera, 114
Cellulose, not digested by Drosera, 125
Chalk, precipitated, causing inflection of Drosera, 32
Cheese, its digestion by Drosera, 116
Chitine, not digested by Drosera, 124