of Beings, 130
Vertebral Theory of Skull, 131, 142
Serial Homology, 131-2
Gill-slits, Gill-arches and Aortic arches, 135-6, 146
Membrane and Cartilage Bones, 162-3
Degrees of Composition, 172
Ova of Mammals, 175-6
Segmentation of Ovum, 186
Criticism of Evolution Theory, 229, 242
Influence on Darwin, 236, 238
Criticism of Darwinism, 242
Teleology and Correlation, 242
On Ascidians, 271

Baer's Law. _See_ "Development, Von Baer's Law"

Bagge, 187

_Balanoglossus_ Theory of Vertebrate Descent, 285-7

Balbiani, 330

Balfour, F. M., 247, 299
Annelid Theory, 282-4
Gastrulation and Gastraea Theory, 295
Mesoderm, 296 f.n.
Coelom, 297

Barfurth, D., 330

Barry, M., 186, 188

Bateson, W.--
Metamerism, Vegetative Repetition, 286
_Balanoglossus_ Theory, 286-7
On Phylogenetic Speculation, 302

Beard, J., 285

Belon, 18

Beneden van, and Julin, 271, 285, 346

Bensley, A. B., 311 f.n.

Bergmann, 187

Bergson, H., 26 f.n., 341, 345

Bernard, Claude, 195, 314

Bert, P., 315

Bichat, X., 27-30, 118, 132, 169, 178, 263
Animal and Vegetative Lives, 27-9
"General Anatomy," 29-30
_Vie propre_ of Tissues, 30

Biogenetic Law. _See_"Development, Haeckel's Law"

Bischoff, 138
Segmentation, 186, 188

Blainville, de, 96, 128, 141, 199 f.n.

Bojanus, 96, 97

Bonnet, C.--
Scale of Beings, 22-3, 220, 227
Evolution, 215
Regeneration, 315

Bonnet, R., 350

Bonnier, G., on Albertus Magnus, 17

Born, G., 330

Boveri, T., 270 f.n., 333

Braem, 347 f.n.

Braun, A., 355

Breschet, 138, 173

Bronn, H. G., 200-3, 248
_Naturphilosophie_, 201
Functional attitude, 201-3
Geometry of Organism, 201, 249
Theory of Types, 202
Principle of Connections, 202
Intrinsic Laws of Evolution, 202
Division of Labour, 202
Ecological Adaptation and Classification, 203

Brown, R., 171

Bruch, C., 203 f.n.

Buechner, 194, 248

Buffon, 24-7, 336
Scale of Beings, 24, 215
Unity of Plan, 24
Evolution, 24-5, 214
Classification, 25-6
Animal and Vegetative Lives, 26-7
Homology and Analogy, 27

Burckhardt, R., 3 f.n., 268 f.n.

Burdin, 96

Burmeister, 249 f.n.

Butler, S., 226 f.n., 313, 335-42
Relation to Lamarck, 335-7
Psychological Vitalism, 336-41
Heredity and Memory, 337-41
The Two Stages of Development, 337-9
Consciousness and Habit, 337-9
Recapitulation Theory, 339-40
Teleology, 341

CABANIS, 215