A.

ABSORPTION by Dionaea, 295 — by Drosera, 17 — by Drosophyllum, 337 — by Pinguicula, 381 — by glandular hairs, 344 — by glands of Utricularia, 416, 421 — by quadrifids of Utricularia, 413, 421 — by Utricularia montana, 437

Acid, nature of, in digestive secretion of Drosera, 88 — present in digestive fluid of various species of Drosera, Dionaea, Drosophyllum, and Pinguicula, 278, 301, 339, 381

Acids, various, action of, on Drosera, 188 — of the acetic series replacing hydrochloric in digestion, 89 —, arsenious and chromic, action on Drosera, 185 —, diluted, inducing negative osmose, 197

Adder's poison, action on Drosera, 206

Aggregation of protoplasm in Drosera, 38 — in Drosera induced by salts of ammonia, 43 — — caused by small doses of carbonate of ammonia, 145 — of protoplasm in Drosera, a reflex action, 242 — — in various species of Drosera, 278 — — in Dionaea, 290, 300

Aggregation of protoplasm in Drosophyllum, 337, 339 — — in Pinguicula, 370, 389 — — in Utricularia, 411, 415, 429, 430, 436

Albumen, digested by Drosera, 92 —, liquid, action on Drosera, 79

Alcohol, diluted, action of, on Drosera, 78, 216

Aldrovanda vesiculosa, 321 —, absorption and digestion by, 325 —, varieties of, 329

Algae, aggregation in fronds of, 65

Alkalies, arrest digestive process in Drosera, 94

Aluminium, salts of, action on Drosera, 184

Ammonia, amount of, in rain water, 172 —, carbonate, action on heated leaves of Drosera, 69 —, —, smallness of doses causing aggregation in Drosera, 145 —, —, its action on Drosera, 141 —, —, vapour of, absorbed by glands of Drosera, 142 —, —, smallness of doses causing inflection in Drosera, 145, 168 —, phosphate, smallness of doses causing inflection in Drosera, 153, 168 —, —, size of particles affecting Drosera, 173 —, nitrate, smallness of doses causing inflection in Drosera, 148, 168 —, salts of, action on Drosera, 136 [page 456]

Ammonia, salts of, their action affected by previous immersion in water and various solutions, 213 —, —, induce aggregation in Drosera, 43 —, various salts of, causing inflection in Drosera, 166

Antimony, tartrate, action on Drosera, 185

Areolar tissue, its digestion by Drosera, 102

Arsenious acid, action on Drosera, 185

Atropine, action on Drosera, 204

B.

Barium, salts of, action on Drosera, 183

Bases of salts, preponderant action of, on Drosera, 186

Basis, fibrous, of bone, its digestion by Drosera, 108

Belladonna, extract of, action on Drosera, 84

Bennett, Mr. A.W., on Drosera, 2 —, coats of pollen-grains not digested by insects, 117

Binz, on action of quinine on white blood-corpuscles, 201 —, on poisonous action of quinine on low organisms, 202

Bone, its digestion by Drosera, 105

Brunton, Lauder, on digestion of gelatine, 111 —, on the composition of casein, 115 —, on the digestion of urea, 124 —, — of chlorophyll, 126 —, — of pepsin, 124

Byblis, 343

C.

Cabbage, decoction of, action on Drosera, 83

Cadmium chloride, action on Drosera, 183

Caesium, chloride of, action on Drosera, 181

Calcium, salts of, action on Drosera, 182

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

Chloroform, effects of, on Drosera, 217 —, —, on Dionaea, 304

Chlorophyll, grains of, in living plants, digested by Drosera, 126 —, pure, not digested by Drosera, 125

Chondrin, its digestion by Drosera, 112

Chromic acid, action on Drosera, 185

Cloves, oil of, action on Drosera, 212

Cobalt chloride, action on Drosera, 186

Cobra poison, action on Drosera, 206

Cohn, Prof., on Aldrovanda, 321 —, on contractile tissues in plants, 364 —, on movements of stamens of Compositae, 256 —, on Utricularia, 395

Colchicine, action on Drosera, 204

Copper chloride, action on Drosera, 185

Crystallin, its digestion by Drosera, 120

Curare, action on Drosera, 204

Curtis, Dr., on Dionaea, 301 [page 457]

D.

Darwin, Francis, on the effect of an induced galvanic current on Drosera, 37 —, on the digestion of grains of chlorophyll, 126 —, on Utricularia, 442

Delpino, on Aldrovanda, 321 —, on Utricularia, 395

Dentine, its digestion by Drosera, 106

Digestion of various substances by Dionaea, 301 — — by Drosera, 85 — — by Drosophyllum, 339 — — by Pinguicula, 381 —, origin of power of, 361

Digitaline, action on Drosera, 203

Dionaea muscipula, small size of roots, 286 —, structure of leaves, 287 —, sensitiveness of filaments, 289 —, absorption by, 295 —, secretion by, 295 —, digestion by, 301 —, effects on, of chloroform, 304 —, manner of capturing insects, 305 —, transmission of motor impulse, 313 —, re-expansion of lobes, 318

Direction of inflected tentacles of Drosera, 243

Dohrn, Dr., on rhizocephalous crustaceans, 357

Donders, Prof., small amount of atropine affecting the iris of the dog, 172

Dragonfly caught by Drosera, 2

Drosera anglica, 278 — binata, vel dichotoma, 281 — capensis, 279 — filiformis, 281 — heterophylla, 284 — intermedia, 279

Drosera rotundifolia, structure of leaves, 4 —, effects on, of nitrogenous fluids, 76 Drosera rotundifolia, effects of heat on, 66 —, its power of digestion, 85 —, backs of leaves not sensitive, 231 —, transmission of motor impulse, 234 —, general summary, 262 — spathulata, 280

Droseraceae, concluding remarks on, 355 —, their sensitiveness compared with that of animals, 366

Drosophyllum, structure of leaves, 333 —, secretion by, 334 —, absorption by, 337 —, digestion by, 339

E.

Enamel, its digestion by Drosera, 106

Erica tetralix, glandular hairs of, 351

Ether, effects of, on Drosera, 219 —, —, on Dionaea, 304

Euphorbia, process of aggregation in roots of, 63

Exosmose from backs of leaves of Drosera, 231

F.

Fat not digested by Drosera, 126

Fayrer, Dr., on the nature of cobra poison, 206 —, on the action of cobra poison on animal protoplasm, 208 —, on cobra poison paralysing nerve centres, 224

Ferment, nature of, in secretion of Drosera, 94, 97

Fibrin, its digestion by Drosera, 100

Fibro-cartilage, its digestion by Drosera, 104

Fibro-elastic tissue, not digested by Drosera, 122

Fibrous basis of bone, its digestion by Drosera, 108 [page 458]

Fluids, nitrogenous, effects of, on Drosera, 76

Fournier, on acids causing movements in stamens of Berberis, 196

Frankland, Prof., on nature of acid in secretion of Drosera, 88

G.

Galvanism, current of, causing inflection of Drosera, 37 —, effects of, on Dionaea, 318

Gardner, Mr., on Utricularia nelumbifolia, 442

Gelatin, impure, action on Drosera, 80 —, pure, its digestion by Drosera, 110

Genlisea africana, 451 — filiformis, 451

Genlisea ornata, structure of, 446 —, manner of capturing prey, 450

Glandular hairs, absorption by, 344 —, summary on, 353

Globulin, its digestion by Drosera, 120

Gluten, its digestion by Drosera, 117

Glycerine, inducing aggregation in Drosera, 52 —, action on Drosera, 212

Gold chloride, action on Drosera, 184

Gorup-Besanez on the presence of a solvent in seeds of the vetch, 362

Grass, decoction of, action on Drosera, 84

Gray, Asa, on the Droseraceae, 2

Groenland, on Drosera, 1, 5

Gum, action of, on Drosera, 77

Gun-cotton, not digested by Drosera, 125

H.

Haematin, its digestion by Drosera, 121

Hairs, glandular, absorption by, 344 —, —, summary on, 353

Heat, inducing aggregation in Drosera, 53 —, effect of, on Drosera, 66 —, —, on Dionaea, 294, 319

Heckel, on state of stamens of Berberis after excitement, 43

Hofmeister, on pressure arresting movements of protoplasm, 61

Holland, Mr., on Utricularia, 395

Hooker, Dr., on carnivorous plants, 2 —, on power of digestion by Nepenthes, 97 —, history of observations on Dionaea, 286

Hydrocyanic acid, effects of, on Dionaea, 305

Hyoscyamus, action on Drosera, 84, 206

I.

Iron chloride, action on Drosera, 185

Isinglass, solution of, action on Drosera, 80

J.

Johnson, Dr., on movement of flower-stems of Pinguicula, 381

K.

Klein, Dr., on microscopic character of half digested bone, 106 —, on state of half digested fibro-cartilage, 104 —, on size of micrococci, 173

Knight, Mr., on feeding Dionaea, 301

Kossmann, Dr., on rhizocephalous crustaceans, 357

L.

Lead chloride, action on Drosera, 184

Leaves of Drosera, backs of, not sensitive, 231 [page 459]

Legumin, its digestion by Drosera, 116

Lemna, aggregation in leaves of, 64

Lime, carbonate of, precipitated, causing inflection of Drosera, 32 —, phosphate of, its action on Drosera, 109

Lithium, salts of, action on Drosera, 181

M.

Magnesium, salts of, action on Drosera, 182

Manganese chloride, action on Drosera, 185

Marshall, Mr. W., on Pinguicula, 369

Means of movement in Dionaea, 313 — in Drosera, 254

Meat, infusion of, causing aggregation in Drosera, 51 —, —, action on Drosera, 79 —, its digestion by Drosera, 98

Mercury perchloride, action on Drosera, 183

Milk, inducing aggregation in Drosera, 51 —, action on Drosera, 79 —, its digestion by Drosera, 113

Mirabilis longiflora, glandular hairs of, 352

Moggridge, Traherne, on acids injuring seeds, 128

Moore, Dr., on Pinguicula, 390

Morphia acetate, action on Drosera, 205

Motor impulse in Drosera, 234, 258 — in Dionaea, 313

Movement, origin of power of, 363

Movements of leaves of Pinguicula, 371 — of tentacles of Drosera, means of, 254 — of Dionaea, means of, 313

Mucin, not digested by Drosera, 122

Mucus, action on Drosera, 80

Mller, Fritz, on rhizocephalous crustaceans, 357

N.

Nepenthes, its power of digestion, 97

Nickel chloride, action on Drosera, 186

Nicotiana tabacum, glandular hairs of, 352

Nicotine, action on Drosera, 203

Nitric ether, action on Drosera, 220

Nitschke, Dr., references to his papers on Drosera, 1 —, on sensitiveness of backs of leaves of Drosera, 231 —, on direction of inflected tentacles in Drosera, 244 —, on Aldrovanda, 322

Nourishment, various means of, by plants, 452

Nuttall, Dr., on re-expansion of Dionaea, 318

O.

Odour of pepsin, emitted from leaves of Drosera, 88

Oil, olive, action of, on Drosera, 78, 126

Oliver, Prof., on Utricularia, 432, 441-446

P.

Papaw, juice of, hastening putrefaction, 411

Particles, minute size of, causing inflection in Drosera, 27, 32

Peas, decoction of, action on Drosera, 82

Pelargonium zonale, glandular hairs of, 350

Pepsin, odour of, emitted from Drosera leaves, 88 —, not digested by Drosera, 123 —, its secretion by animals excited only after absorption, 129

Peptogenes, 129

Pinguicula grandiflora, 390 — lusitanica, 391 [page 460]

Pinguicula vulgaris, structure of leaves and roots, 368 —, number of insects caught by, 369 —, power of movement, 371 —, secretion and absorption by, 381 —, digestion by, 381 —, effects of secretion on living seeds, 390

Platinum chloride, action on Drosera, 186

Poison of cobra and adder, their action on Drosera, 206

Pollen, its digestion by Drosera, 117

Polypompholyx, structure of, 445

Potassium, salts of, inducing aggregation in Drosera, 50 —, —, action on Drosera, 179 — phosphate, not decomposed by Drosera, 180, 187

Price, Mr. John, on Utricularia, 429

Primula sinensis, glandular hairs of, 348 —, number of glandular hairs of, 355

Protoplasm, aggregation of, in Drosera, 38 —, —, in Drosera, caused by small doses of carbonate of ammonia, 145 —, —, in Drosera, a reflex action, 242 — aggregated, re-dissolution of, 53 —, aggregation of, in various species of Drosera, 278 —, —, in Dionaea, 290, 300 —, —, in Drosophyllum, 337, 339 —, —, in Pinguicula, 370, 389 —, —, in Utricularia, 411, 415, 429, 430, 436

Q.

Quinine, salts of, action on Drosera, 201

R.

Rain-water, amount of ammonia in, 172

Ralfs, Mr., on Pinguicula, 390

Ransom, Dr., action of poisons on the yolk of eggs, 225

Re-expansion of headless tentacles of Drosera, 229 — of tentacles of Drosera, 260 — of Dionaea, 318

Roots of Drosera, 18 — of Drosera, process of aggregation in, 63 — of Drosera, absorb carbonate of ammonia, 141 — of Dionaea, 286 — of Drosophyllum, 332 — of Pinguicula, 369

Roridula, 342

Rubidium chloride, action on Drosera, 181

S.

Sachs, Prof., effects of heat on protoplasm, 66, 70 —, on the dissolution of proteid compounds in the tissues of plants, 362

Saliva, action on Drosera, 80

Salts and acids, various, effects of, on subsequent action of ammonia, 214

Sanderson, Burdon, on coagulation of albumen from heat, 74 —, on acids replacing hydrochloric in digestion, 89 —, on the digestion of fibrous basis of bone, 108 —, — of gluten, 118 —, — of globulin, 120 —, — of chlorophyll, 126 —, on different effect of sodium and potassium on animals, 187 —, on electric currents in Dionaea, 318

Saxifraga umbrosa, glandular hairs of, 345 [page 461]

Schiff, on hydrochloric acid dissolving coagulated albumen, 86 —, on manner of digestion of albumen, 93 —, on changes in meat during digestion, 99 —, on the coagulation of milk, 114 —, on the digestion of casein, 116 —, — of mucus, 123 —, on peptogenes, 129

Schloesing, on absorption of nitrogen by Nicotiana, 352

Scott, Mr., on Drosera, 1

Secretion of Drosera, general account of, 13 — —, its antiseptic power, 15 — —, becomes acid from excitement, 86 — —, nature of its ferment, 94, 97 — by Dionaea, 295 — by Drosophyllum, 335 — by Pinguicula, 381

Seeds, living, acted on by Drosera, 127 —, —, acted on by Pinguicula, 385, 390

Sensitiveness, localisation of, in Drosera, 229 — of Dionaea, 289 — of Pinguicula, 371

Silver nitrate, action on Drosera, 181

Sodium, salts of, action on Drosera, 176 —, —, inducing aggregation in Drosera, 50

Sondera heterophylla, 284

Sorby, Mr., on colouring matter of Drosera, 5

Spectroscope, its power compared with that of Drosera, 170

Starch, action of, on Drosera, 78, 126

Stein, on Aldrovanda, 321

Strontium, salts of, action on Drosera, 183

Strychnine, salts of, action on Drosera, 199

Sugar, solution of, action of, on Drosera, 78 —, —, inducing aggregation in Drosera, 51

Sulphuric ether, action on Drosera, 219 —, — on Dionaea, 304

Syntonin, its action on Drosera, 102

T.

Tait, Mr., on Drosophyllum, 332

Taylor, Alfred, on the detection of minute doses of poisons, 170

Tea, infusion of, action on Drosera, 78

Tentacles of Drosera, move when glands cut of, 36, 229 —, inflection, direction of, 243 —, means of movement, 254 —, re-expansion of, 260

Theine, action on Drosera, 204

Tin chloride, action on Drosera, 185

Tissue, areolar, its digestion by Drosera, 102 —, fibro-elastic, not digested by Drosera, 122

Tissues through which impulse is transmitted in Drosera, 247 — — in Dionaea, 313

Touches repeated, causing inflection in Drosera, 34

Transmission of motor impulse in Drosera, 234 — — in Dionaea, 313

Traube, Dr., on artificial cells, 216

Treat, Mrs., on Drosera filiformis, 281 —, on Dionaea, 311 —, on Utricularia, 408, 430

Trcul, on Drosera, 1, 5

Tubers of Utricularia montana, 439

Turpentine, action on Drosera, 212 [page 462]

U.

Urea, not digested by Drosera, 124

Urine, action on Drosera, 79

Utricularia clandestina, 430 — minor, 429

Utricularia montana, structure of bladders, 431 —, animals caught by, 435 —, absorption by, 437 —, tubers of, serving as reservoirs, 439

Utricularia neglecta, structure of bladders, 397 —, animals caught by, 405 —, absorption by, 413 —, summary on absorption, 421 —, development of bladders, 424

Utricularia, various species of, 441

Utricularia vulgaris, 428

V.

Veratrine, action on Drosera, 204

Vessels in leaves of Drosera, 247 — of Dionaea, 314

Vogel, on effects of camphor on plants, 209

W.

Warming, Dr., on Drosera, 2, 6 —, on roots of Utricularia, 397 —, on trichomes, 359 —, on Genlisea, 446 —, on parenchymatous cells in tentacles of Drosera, 252

Water, drops of, not causing inflection in Drosera, 35 —, its power in causing aggregation in Drosera, 52 —, its power in causing inflection in Drosera, 139 — and various solutions, effects of, on subsequent action of ammonia, 213

Wilkinson, Rev., on Utricularia, 398

Z.

Ziegler, his statements with respect to Drosera, 23 —, experiments by cutting vessels of Drosera, 249

Zinc chloride, action on Drosera, 184