246 



INDEX 



Immortality in protozoa, 69 



Immunity, 193 



Indusium, 121 



Insects, 182 



Internal structures of the earth- 

 worm, 133 



Intra-cellular digestion in Hydra, 90 



Invertase in yeast, 37 



Irritability in amoeba, 50; in hydra, 

 91; in paramecium, 64 



Jordan, bacteria multiplication, 39 



K 



Karyokinesis, 205 

 Katabolism, 12 

 Kent, 75 



Kitasato and von Behring anti- 

 bodies, 195 



Lamarck, evolution, 201 



Lang, 170, 1 80 



Laplace, physical and physiological 



combustion, n 

 Latour, Cagniard de, fermentation, 



35 

 Lavoisier, physiological combustion, 



II 

 Leeuwenhoek, discovery of protozoa, 



67; of yeast, 35 

 Leidy, 47 

 Lenhossek, 149 

 Lesser and Taschenberg, 139 

 Leuckart, 187, 188 

 Lifeless matter in living cells, 19 

 Lillie, enzyme action in fertilization, 



41 



Living and lifeless matter, 6 

 "Lucky strikes" in evolution, 232 

 Lumbricus terrestris, 132; structures 



and functions, 128-157 

 Lygaeus, sex chromosomes, 223 



M 



Macfadyen, Morris and Rowland, 



yeast, 37 



Maltase enzyme of yeast, 37 

 Manifestations of vitality, 16 

 Marshall and Hurst, 82-84 

 Mastigophora, flagellated protozoa, 



52 



Maturation divisions, 208; phe- 

 nomena, 206 



Maupas, immortality, 69 



McGregor 138, 140 



Mechanism of immunity, 195 



Medusae, sexual generation of hy- 

 droids, 96 



Mendel, inheritance, 214 



Mendelian principles of heredity, 

 214 



Meristem of the fern, 112 



Meroblastic cleavage, 178 



Merychippus, 229 



Mesoderm, in development, 79 



Metabolism, property of protoplasm, 

 9, 12; of amoeba, 46 



Metagenesis in hydroids, 98 



Metamerism, 130 



Metamorphosis, 178 



Metschnikoff, theory of immunity, 

 195; phagocytosis, 193 



Microgromia socialis, 74 



Microhydra, 80 



Milne-Edwards, 173 



Mitosis, 205 



Monaxonic forms, 18 



Morgan, 211, 215, 216, 217, 218, 219, 

 221, 222, 223, 225; genetics, 226; 

 heredity, 231 



Morphology, subject matter, i 



Motor response in paramecium, 64 



Movements of protoplasm, 20; ef- 

 fects of temperature on, 24 



Muscular contraction, 23 



Muscular system of earthworm, 144; 

 of lobster, 173 



Mysis stage of the lobster, 180 



N 



Naegeli, germ plasm, 203 

 Natural immunity, 194 

 Nauplius larva, 178 

 Nematocysts of hydra, 84 

 Neo-Lamarckians, 201 

 Nephridia of the earthworm, 142 

 Nephroblasts, in development, 157 

 Nerve cells of hydra, 84, 87 

 Nervous system, of earthworm, 145; 



of hydra, 91; of lobster, 175 

 Nettle cells of hydra, 83 

 Neuroblasts in development, 155 

 Neurology, subject matter, 3 

 Neurons, 151 



Nitella, stonewort, moving proto- 

 plasm, 20, 21 



Nitrobacter, nitrifying bacillus, 40 

 Nitrosomonas, nitrifying bacillus, 40 

 Nucleus, distinct from cytoplasm, 28 



