Botrytis, the cause of the murrain in potatoes, i. 284 structure of, i. 284
Brachionus pala, structure of, ii. 162-166
Brachyura, structure and mode of reproduction of, ii. 189-197
Brain, structure and functions of the, ii. 8
Branchipes stagnalis, structure of, ii. 210
Bread, fungus which attacks, hot from the oven, i. 296
Bread-fruit tree, food obtained from the, i. 426
Bristle fern, structure and habitat of, i. 361
Bromine, i. 18 whence obtained, i. 18 properties of, i. 20, 22 Professor Schönbein’s views as to, i. 20, 21 spectrum of, i. 21 amount of absorption of radiant heat by, i. 41, 42, 43 atomic weight of, compared with that of hydrogen, i. 100 spectrum analysis of, i. 140
Bryei, characters and structure of the, i. 329
Bryopsis, structure and habitat of, i. 219, 224
Bryozoa, or Polyzoa, characters of, ii. 218
Buckthorn, green dye obtained from, i. 124
Buds of trees, structure and functions of, i. 411
Bulbous plants, structure and reproduction of, i. 388
Bunt, germination of the spores of, i. 281
Cadmium, i. 4 spectrum of volatilized cadmium, i. 64 chloride of, spectrum of, i. 146
Cæomacei, structure and mode of reproduction of, i. 278
Cæsium, i. 3, 4 atomic weight of, compared with that of hydrogen, i. 100 one of an isomeric triad with rubidium and potassium, i. 105 M. Bunsen’s discovery of the metal by spectrum analysis, i. 134, 135 mode of distinguishing it from potassium, i. 136 its properties, i. 136 changes in its spectrum by high temperature, i. 144
Caffeine, the neutral crystallisable principle of coffee, i. 428
Caladium distillatorium, water secreted by at night, i. 429
Calanus, structure and social habits of the, ii. 206 bloody water formed by the, ii. 206
Calanus sanguineus, structure of, ii. 206
Calcarina, intermediate skeleton of, ii. 42, 43
Calcium, i. 3, 4 one of an isomeric triad with strontium and barium, i. 105 spectrum analysis of the rarefied vapour of, i. 142 effect of high temperature, i. 143 chloride of, spectrum of, i. 146
Caliciei, characters and habitat of the order, i. 309
Calicium tympanellum, organs of reproduction of, i. 301
Calico-printing, use of oxalic acid in, i. 116
Callithamnion, structure of the genus, i. 231
Callithamnion corymbosum, structure and reproductive organs of, i. 231, 232