INDEX 



541 



Iris ii 



Iris weevil 349 



Jschnura 387 



Isolation 502 



ellyfish 331 



oint-grass 137 



uncos 429 



ungermannia 124 



uvenescence . . . . : 329 



Karyokinesis 294 



Katabolism. . . . 90 



Kidney 184, 188 



Kinetic energy 84 



Kinglet 47 6 



Kitten 480 



Labella 



Labium 



Labrum 



Lacinia 



Lack of insight 

 Lactuca 



20 



18 



18 



18 



49 



40 



Lancelet ? 206, 214 



Language 489, 490 



Laughter 502 



Law of specialization . .219, 422 



Leaf 130, 138, 143 



Learning by experience ... 479 



Leaves of mosses 125 



Leeuwenhoek 299 



Legs 17 



Lemurs 485 



Leopard frog 425 



Lepidoptera 24, 42, 44, 426 



Leptocephalus 343 



Lestes 376 



Leucocytes i73>35o 



Libellula 285 



Lichen 390 



Lichen buds 395 



Life cycle 329 



Life process 82,176,217 



Line of descent 291 



Line of succession 291 



Linin 293 



Linnaeus 220 



Lioness 321 



Liver 186, 198 



PAGE 



Liverwort 238 



Lloyd Morgan quoted .... 364 



Loosestrife 13 



Lop-ears in rabbits 



Lorica 37 



Loss of color '. . 425 



Lost appendages 355 



Lungless salamanders .... 1 83 . 



Lymph vessels 213 



Macrobiotus 377 



Macropis ciliata 8 



Macrosporangium 138, 150 



Macrospore . . 138, 140, 149, 153 



Mad stone 505 



Magic 504 



Magnifying power 513 



Malacostraca 230 



Malpighian tubules ...... 4 1 1 



Mammoth 493 



Man 207 



Mandibles 18 



Mantle galls 39 



Manual training 487 



Marsh hawks 324 



Marsupials 242 



Matter 82 



Maturation 297, 299 



Maxilla 18, 231 



Maxillipeds 231 



Mayflies 244, 258, 347 



Meaning of nurture 321 



Mechanical stimuli 444 



Medulla 145, 192, 201, 461 



Medusa 330 



Meganucleus 75, 80 



Mendel 310 



Mendelian inheritance ... 310 



Meristem 133 



Mesentery 186 



Mesoderm 171, 173, 195 



Mesophytes 372 



Metabolism, 



86, 218, 329, 443, 457 

 Metamorphosis . . .342, 345, 352 



Metaphase 294 



Metazoa 441 



Metzneria 425 



Micrasterias . 68 



Micronucleus 75, 80 



