Electro-chemical action in heterogeneous atoms of matter, i. 95
Electro-magnetic induction apparatus, i. 31 Ruhmkorff’s, i. 32
Encalypta vulgaris, organs of fructification of, i. 326
Endocarpei, structure and habitat of, i. 310
Endocarpon lacteum, structure and organs of reproduction of, i. 299
Enteromorpha, characters of the genus, i. 223
Enteromorpha intestinalis, structure and habitat of, i. 223, 224
Entophytes, characters of the group of, i. 275, 276 sporangia, or spore-cells, of, i. 279
Entozoa, characters of the order of, ii. 144 transformations of the young of the, ii. 146
Eolis, the crowned, structure of, ii. 240, 241
Eozoön Canadense, may be regarded as the first appearance of animal life upon the earth, ii. 54 found in fundamental quartz rocks, ii. 54 structure of, ii. 55 range of its existence, ii. 56
Epipactis palustris, structure and mode of reproduction of, i. 397, 398
Epiphytes, characters of the group of, i. 275
Epithemia, mode of development of, i. 202
Epizoa, or suctorial crustacea, structure, habitat, and mode of reproduction of, ii. 212
Equisetaceæ, or horse-tails, characters of, i. 367 contrasted with ferns, i. 369 large quantity of silex in, i. 369 size and habitat of fossil and existing species, i. 369
Equisetum giganteum, structure and fructification of, i. 368
Ergot, Cordyceps the second form of, i. 293
Errantia, structure and habitat of the, ii. 156, 157, 161
Ether, sulphuric absorption of radiant heat by, i. 40
Eucamptodon perichætialis, leaves of, i. 330
Euglyphæ, structure and habitat of, ii. 22
Eunice, structure of, ii. 157 mode of reproduction of, ii. 160
Euparmeliaceæ, characters of the group, i. 304
Euphorbiaceæ, or spurgeworts, poisons and food supplied by the, i. 425, 426
Evernia vulpina, i. 303 brown dye obtained from, i. 303
Exchange, law of, i. 35 independent proofs of the, i. 35, _note_
Exidia Auricula Judæ, or Jew’s Ear fungus, structure and fructification of, i. 266
Excœcaria Agallocha, poison of the, i. 426
Fermentation, fungi producing, i. 286-288 minuteness and lowness of organization of the ferments, ii. 68 habitat of the, ii. 68
Fibrin, formation and structure of, in vegetable organisms, i. 423
Fig, common, juices of fruit of, changed into sugar, i. 426 poison of the white juice of the, i. 426
