• Abbe’s diffraction plates, 323
• Abel, O., 706
• Abonyi, A., 127
• Acantharia, spicules of, 458
• Acanthometridae, 462
• Acceleration, 64
• Aceratherium, 761
• Achlya, 244
• Acromegaly, 135
• Actinomma, 469
• Actinomyxidia, 452
• Actinophrys, 165, 197, 264, 298
• Actinosphaerium, 197, 266, 298, 468
• Adams, J. C., 663
• Adaptation, 670
• Addison, Joseph, 671
• Adiantum, 408
• Adsorption, 192, 208, 241, 277, 357;
  • orientirte, 440, 590;
  • pseudo, 282
• Agglutination, 201
• Aglaophenia, 748
• Airy, H., 636
• Albumin molecule, 41
• Alcyonaria, 387, 413, 424, 459
• Alexeieff, A., 157, 165
• Allmann, W., 643
• Alpheus, claws of, 150
• Alpine plants, 124
• Altmann’s granules, 285
• Alveolar meshwork, 170
• Ammonites, 526, 530, 537, 539, 550, 552, 576, 583, 234
• Beak, shape of, 730
• Cantilever, 678, 694
• Cantor, Moritz, 503
• Caprella, 743
• Caprinella, 567, 577
• Carapace of crabs, 744
• Cardium, 561
• Cariacus, 629
• Carlier, E. W., 211
• Carnoy, J. B., 468
• Carpenter, W. B., 45, 422, 465
• Caryokinesis, 14, 157, etc.
• Cassini, D., 329
• Cassis, 559
• Catabolic products, 435
• Catalytic action, 130
• Catenoid, 218, 223, 227, 252
• Causation, 6
• Cavolinia, 573
• Cayley, A., 385
• Celestite, 459
• Cell-theory, 197, 199
• Cells, forms of, 201;
  • sizes of, 35
• Cellular pathology, 200;
  • tissue, artificial, 320
• Cenosphaera, 470
• Centres of force, 156, 196
• Centrosome, 167, 168, 173
• Cephalopods, 548, etc.;
  • eggs of, 378
• Ceratophyllum, growth of, 97
• Ceratorhinus, 612
• Cerebratulus, egg of, 189
• Cerianthus, 125
• Cerithium, 530, 557, 559
• Chabrier, J., 25
• Chabry, L., 30, 306, Cyclammina, 595, 596, 602
• Cyclas, 561
• Cyclostoma, 554
• Cylinder, 218, 227, 377
• Cymba, 559
• Cyme, 502
• Cypraea, 547, 554, 560, 561
• Cyrtina, 569
• Cyrtocerata, 583
• Cystoliths, 412

149">149

Empedocles, 8

Emperor Moth, 431

Encystment, 213, 283

Engelmann, T. W., 210, 285

Enriques, P., 4, 36, 64, 133, 134, 677

Entelechy, 4, 714

Entosolenia, 449

Enzymes, 135

Epeira, 233

Epicurus, 47

Epidermis, 314, 370

Epilobium, pollen of, 396

Epipolic force, 212

Equatorial plate, 174

Equiangular spiral, 50, 505

Equilibrium, figures of, 227

Equipotential lines, 640

Equisetum, spores of, 290, 489

Errera, Leo, 8, 40, 110, 111, 213, 306, 346, 348, 426

Erythrotrichia, 358, 372, 390

Ethmosphaera, 470

Euastrum, 214

Eucharis, 391

Euclid, 509

Euglena, 376

Euglypha, 189

Euler, L., 3, 208, 385, 484, 690

Eulima, 559

Eunicea, spicules of, 424

Euomphalus, 557, 491

Geryon, 744

Gestaltungskraft, 485

Giard, A., 156

Gilmore, C. W., 707

Giraffe, 705, 730, 738

Girardia, 321, 408

Glaisher, J., 250

Glassblowing, 238, 737

Gley, E., 135, 136

Globigerina, 214, 234, 440, 495, 589, 602, 604, 606

Gnomon, 509, 515, 591

Goat, horns of, 613

Goat moth, wings of, 430

Goebel, K., 321, 397, 408

Goethe, 20, 38, 199, 714, 719

Golden Mean, 511, 643, 649

Goldschmidt, R., 286

Goniatites, 550, 728

Gonothyraea, 747

Goodsir, John, 156, 196, 580

Gottlieb, H., 699

Gourd, form of, 737

Grabau, A. H., 531, 539, 550

Graham, Thomas, 162, 201, 203

Grant, Kerr, 259

Grantia, 445

Graphic statics, 432

Invagination, 56, 344

Iodine, 136

Irvine, Robert, 414, 434

Isocardia, 561, 577

Isoperimetrical problems, 208, 346

Isotonic solutions, 130, 274

Iterson, G. van, 595

• Jackson, C. M., 75, 88, 106
• Jamin, J. C., 418
• Janet, Paul, 5, 18, 673
• Japp, F. R., 417
• Jellett, J. H., 1
• Jenkin, C. F., 444
• Jenkinson, J. W., 94, 114, 170
• Jennings, H. S., 212, 492;
  • Vaughan, 424
• Jensen, P., 211
• Johnson, Dr S., 62
• Joly, John, 9, 63
• Jost, L., 110, 111
• Juncus, pith of, 335
• Jungermannia, 404

• Kangaroo, 705, 706, 709
• Kanitz, Al., 109
• Kant, Immanuel, 1, 3, 714
• Kappers, C. U. A., 566
• Kellicott, W. E., 91
• Kelvin, Lord, 9, 49, 188, 202, 336, 453
• Kepler, 328, 480, 486, 643, 318;
  • J. J., 436
• Listing, J. B., 385
• Lithostrotion, 325
• Littorina, 524
• Lituites, 546, 550
• Llama, 703
• Lobsters’ claws, 149
• Locke, John, 6
• Loeb, J., 125, 132, 135, 136, 147, 157, 191, 193
• Loewy, A., 281
• Logarithmic spiral, 493, etc.
• Loisel, G., 88
• Loligo, shell of, 575
• Lo Monaco, 83
• LÖnnberg, E., 614, 632
• Looss, A., 660
• Lotze, R. H., 55
• Love, A. E. H., 674
• Lucas, F. A., 138
• Luciani, L., 83
• Lucretius, 47, 71, 137, 160
• Ludwig, Carl, 2;
  • F., 643;
  • H. J., 342
• Lupa, 744
• Lupinus, growth of, 109, 112

• Macalister, A., 557
• MacAlister, Sir D., 673, 683
• Macallum, A. B., 277, 287, 357, 395;
  • J. B., 492
• McCoy, F., 388
• Mach, Ernst, 209, 330
• Machaerodus, teeth of, 633
• McKendrick, J. G., 42
• McKenzie, A., 418
• Mackinnon, /ul>
• Mummery, J. H., 425
• Munro, H., 323
• Musk-ox, horns of, 615
• Mya, 422, 561
• Myonemes, 562

x">Perrin, J., 43, 46

Peter, Karl, 117

Pettigrew, J. B., 490

Pfeffer, W., 111, 273, 688

PflÜger, E., 680

Phagocytosis, 211

Phascum, 408

Phase of curve, 68, 81, etc.

Phasianella, 557, 559

Phatnaspis, 482

Phillipsastraea, 327

Philolaus, 779

Pholas, 561

Phormosoma, 664

Phractaspis, 484

Phyllotaxis, 635

Phylogeny, 196, 251, 548, 716

Pike, F. H., 110

Pileopsis, 555

Pinacoceras, 584

Pithecanthropus, 772

Pith of rush, 335

Plaice, 98, 105, 117, 432, 710, 774

Planorbis, 539, 547, 554, 557, 559

Plateau, F., 30, 232;

• J. A. F., 192, 212, 218, 239, 275, 297, 374, 477

Plato, 2, 478, 720;

• Platonic bodies, 478

Plesiosaurs, 755

303, 305, 355, 356

Reniform shape, 735

Reticularia, 569

Reticulated patterns, 258

RÉticulum plasmatique, 468

Rhabdammina, 589

Rheophax, 263

Rhinoceros, 612, 760

Rhumbler, L., 162, 165, 260, 322, 344, 465, 466, 589, 590, 595, 599, 608, 628

Rhynchonella, 561

Riccia, 372, 403, 405

Rice, J., 242, 273

Richardson, G. M., 416

Riefstahl, E., 578

Riemann, B., 385

Ripples, 33, 261, 323

Rivularia, 300

Roaf, H. C., 272

Robert, A., 306, 339, 348, 377

Roberts, C., 61

Robertson, T. B., 82, 132, 191, 192

Robinson, A., 681

RÖrig, A., 628

Rose, Gustav, 421

Rossbach, M. J., 165

Rotalia, 214, 535, 602

Rotifera, cells of, 38

Roulettes, 586, 603

Spirula, 528, 547, 554, 575, 577

Spitzka, E. A., 92

Splashes, 235, 236, 254, 260

Sponge-spicules, 436, 440

Spontaneous generation, 420

Sporangium, 406

Spottiswoode, W., 779

Spray, 236

Stallo, J. B., 1

Standard deviation, 78

Starch, 432

Starling, E. H., 135

Stassfurt salt, 433

Stegocephalus, 746

Stegosaurus, 706, 707, 710, 754

Steiner, Jacob, 654

Steinmann, G., 431

Stellate cells, 335

Stentor, 147

Stereometry, 417

Sternoptyx, 748

Stillmann, J. D. B., 695

St Loup, R., 82

Stokes, Sir G. G., 44

Stolc, Ant., 452

Stomach, muscles of, 490

Stomata, 393

Stomatella, 554

StrasbÜrger, E., 35, 283, 409

Straus-DÜrckheim, H. E., 30

Stream-lines, 250, 673, 736

Strength of materials, 676, 679

Streptoplasma, 391

Strophomena, 567

Studer, T., 413

Stylonichia, 133

Succinea, 624

Tyndall, John, 428

• Umbilicus of shell, 547
• Underfeeding, effect of, 106
• Undulatory membrane, 266
• Unduloid, 218, 222, 229, 246, 256
• Unio, 341
• Univalve shells, 553
• Urechinus, 664

• Vaginicola, 248
• Vallisneri, Ant., 138
• Van Iterson, G., 595
• Van Rees, R., 374
• Van’t Hoff, J. H., 1, 110, 433
• Variability, 78, 103
• Venation of wings, 385
• Verhaeren, Emile, 778
• Verworn, M., 198, 211, 467, 605
• Vesque, J., 412
• Vierordt, K., 73
• Villi, 32
• Vincent, J. H., 323
• Vines, S. H., 502
• Virchow, R., 200, 286
• Vital phenomena, 14, 417, etc.
• Vitruvius, 740
• Volkmann, A. W., 669
• Voltaire, 4, 146
• Vorticella, 237, 246, 291

• Wager, H. W. T., 259
• Walking, 30
• Wallace, A. R., 5, 432, 549
• Wallich-Martius, 77
• Warburg, O., 161
• Warburton, C., 233
• Ward, H. Marshall, 133
• Warnecke, P.,
                                                                                                                                                                                                                                                                                                             
  
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