496 



Index 



Invertebrates, dispersal, 155 



fossil, 117 



migration. 154 

 lodin, see Thyroid 

 IrritaHlity, characteristic of life, 



282 



Irving, quoted, 153 

 Isolation, arthropods, bird lice, 

 birds, butterflies, 253 



geographic, 252-6 



habitudinal, insects, 253 



kinds, 252 



structural, temporal, 253 

 Isthmus, see Behring, Panama 



Kelvin, Lord, 363-4 



' ' Kentucky Warbler, ' ' quotation, 



24-5 



Kerona, 92 



Kidney, excretion, 322 

 Kimball, quoted, 268-9 

 Kinetic drive, 321-5 

 King, 85, 194 

 King crab, ill. 117 

 Kings College, 50 

 Kissinger, 452 

 Kiwi, see Apteryx 

 Koch, 440, 480 

 Kofoid, 306, 383 

 Krascheninikov, 426 



Jackass, see Hybrid 



Jack rabbit, see Rabbit 



James, 34 



Japanese goldfish, fins, 112 



Jaws, see Vertebrates, structure. 



Jays, distribution, 177 



Jefferson, contributions to bio- 

 logy, 34 

 correspondence with Buffon, 



with Wistar, 33 

 interests, 32 



Lowis and Clark expedition, 32 

 pioneer plant importer, 33-4 

 *' "'n from Bryant, 33 

 ill. 35 



Jell>tish, see Medusa 



Jenner, 442 



Jennings, 88, 237, 242, 305-6; 

 quoted, 301-3 



Jochmann, 448 



Johannsen, 236-7 



Johns Hopkins University, see De- 

 partment of Embryology 



Jordan, 43, 88, 252 



Juday, 380, 382 



Judd, 347, 392 



Jukes, 270 



Kalacoon, see Tropical Research 



Station 



Kallikaks, 270 

 Kallima, camouflage, 337-8; ill. 



337 



Kane, 54 



Kangaroo, see Marsupial 

 Kant, 235 



Katabolism, see Metabolism 

 Kellogg, quoted, 317-8 



Laboratories, biological, see Bus- 

 sey, Carnegie, Marine Bio- 

 logical Laboratory, Rocke- 

 feller, Scripps, Wistar 

 Laboratory, biological equipment, 



52 



see Eugenics 

 Labyrinthodont tooth, see Stego- 



cephala 



Lacey Act, 392 

 Ladybird beetle, see Vedalla 

 Lahontan, sec Lake 

 La Jolla, Calif., see Scripps Insti- 

 tution 



Lake beaches, old, 78, 80 

 Bonneville, 76, 77 

 Lahontan, 76, 79 

 Minnewaukon, 79, 119 

 Mono, 79 

 Owens, 79, 80 

 Pyramid, 79 

 Winnemucca, 79 

 Lakes, disappearance, 78-80, 160 

 Lamarck, 244, 249 

 Land bridges, 143 

 Lantz, quoted, 154, 393-8 

 Lapland longspur, distribution, 



168 



Lark bunting, distribution, 182 

 Larva, see Echinoderms, Molluscs, 

 Trocophore, Tunicates, 



Worms 



Larvae, see Mosquitoes 

 Larynx, see Vertebrates, structure 

 Latency, see Recessiveness 

 Lateral fin fold theory, 111-2, 120 

 Lateral line, see Stegocephala 

 Lathrop, 414 

 Laurentian period, 117 



