INDEX 



245 



Eohippus, fossil horse, 229 



Epidermis of fern rhizome, in 



Epithelio muscle cells of Hydra, 82 



Equation division, 206 



Erxleben, cause of fermentation, 35 



Euglena, 53 



Euplectella with commensal crus- 

 tacea, 189, 190 



Euplotes patella in division, 13 



Evolution, 200 



Excretion and respiration, 90 



Excretory system of the earthworm, 

 142; of the lobster, 173 



Exopodites of lobster appendages, 

 164 



Experimental biology, 201 



External apertures of the earth- 

 worm, 132 



Eyes, of the lobster, 177 



Facultative parasites, 189 



False indusium of the fern, 121 



Farre, 175 



Fate of absorbed food in earthworm, 



141 



Ferments, definition, 34; in diges- 

 tion, 36; organized and unorgan- 

 ized, 36 



Fermentation, alcoholic, 34 

 Fern, chromosome reduction, 210 

 Fibrillar theory of protoplasmic 



structure, 17 

 Fibro-vascular bundles of the fern, 



112 



Flagella, definition, 23 



Flagellated protozoa, 52-58 



Flemming, mitosis, 205 



Food of animals, 101 



Form as a manifestation of vitality, 



17 



Formative cells of Hydra, ectoder- 

 mal, 86; endodermal, 87 



Galton, germ plasm, 203 

 Ganglia in metazoa, 91 

 Gastric mill, 168 

 Gastric vacuoles of Amoeba, 45 

 Gastrula, stage in development, 77 

 Gastrulation in metazoa, 77 

 General biology, subject matter, 4 

 Generalized organisms, 28 

 Gemmation, method of reproduction, 



13 



Genetics, 202; subject matter, 3 

 Germ cells after maturation, 210; 



in maturation, 208 



Germination of fern spores, 121 

 Gerstaecker, 173, 174, 175 

 Gills of the lobster, 170 

 Gizzard of the earthworm, 135 

 Gonium pectorale, a i6-cell colony, 



57; in reproduction, 76 

 Gregaloid colonies of protozoa, 74 

 Gregarine, reproduction by sporula- 



tion, 15 

 Growth, a property of protoplasm, 



12 



Guard cells of the fern, 115 



II 



Habits of earthworms, 128; of the 



lobster, 162 



Haemocoel of the lobster, 170 

 Haploid number of chromosomes, 



209 



Harrington, calciferous glands, 137 

 Harvey, omne vivum ex vivo, 67 

 Hazen, 105 

 Hedge, 138, 140 

 Hensen, worm castings, 141 

 Hepato-pancreas, 168 

 Heredity, and Mendelism, 214; of 



one pair of characters, 214; of sex, 



220; of two pairs of characters, 219 

 Her rick 179, 181 

 Hertwig, R., 184, 188 

 Heterozygous germ cells, 217 

 Hipparion, fossil horse, 229 

 Histology, of Hydra, 81; of Pteris, 



no; subject matter, 3 

 Hofer, experiments with amoeba, 48 

 Hofmeister 124 

 Holoblastic cleavage, 77 

 Holozoic nutrition, 54 

 Homology and classification, 158; in 



insects, 184 



Homozygous germ cells, 217 

 Howes, 47 

 Homarus Americanus, the lobster, 



162 



Homaxonic forms, 18 

 Hooke, cells, 26 



Hoppe-Seyler, chemical composi- 

 tion of protoplasm, 7 

 Hormones, 41 

 Huxley, protoplasm, 6; spontaneous 



generation, 66 

 Hydra, budding, 13 

 Hydra fusca, 14; and Hydra viridis, 



80; structures and functions, 81- 



Hydroids, 96 



Hypnotoxin, in the nettle cells of 

 hydra, 88 



