INDEX 



77 



Filament, of Carchesium and Zootham- Helix, 55. 



nium, 23. Hermaphrodite, 34. 



Fin, 56; of frog tadpole, 43. Heron, 69. 



Fission, in Paramecium, 32, 33. Hinge, of mussel, 63. 



Flagellate, 9, 14. Hipparion, 72, 73. 



Flagellum, of Euglena or Peranema, 14; Hippocampus, care of eggs, 39. 



of Pleodorina, 24; of Volvox, 24. Homology, 46. 



Focusing, 6. Hookworm, 54. 



Foot, of mussel, 63. Horned lark, 69. 



Foraminal aperture, of sponge gemmule, Horse, evolution of, 49, 72-74; legs of 



modern, 49. 

 Humerus, 47; of frog, 48; of man, 47; of 



pigeon, 48. 

 Hydra, 10, 25, 26, 28, 30, 52; H. oligactis, 



25; H. viridissima, 25. 

 Hydranths, of Obelia, 30, 36, 52. 

 Hydrochloric acid, 17. 

 Hydroid, metagenesis in, 36. 

 Hydrorhiza, of Obelia, 31. 

 Hydrotaxis, 66. 



34. 



Forest areas of North America, 67. 



Fossils, 70-74. 



Frog, development of, 42. 



Fungia, 52. 



Furcula, of pigeon, 48. 



Gall bladder, of frog tadpole, 44. 



Ganglia, of earthworm, 29. 



Gastrocnemius, 16. 



Gastrovascular cavity, 52, 53; in Hydra, Hydrotheca, of Obelia, 30. 



25. 52. Hyla, 58. 



Gastrula, of frog embryo, 43. Hypodermis, of earthworm, 29. 



Gemmule, of sponge, 33, 34. Hypohippus, 72, 73. 



Genera, 61. Hypostome, of Obelia, 30. 



Geotaxis, 66. 

 Germ cells, in earthworm, 29; in Hydra, Ilium, 47; of frog, 48; of man, 47; of 



26; in Pleodorina, 24; in Volvox, 25; pigeon, 49. 



maturation of, 40, 41, 42. Illumination, of microscopic preparations, 



Gill plate, of frog tadpole, 43. 6. 



Gills, 56, 57; of frog tadpole, 43, 44; of Incubation, 39. 



mussel, 63. Ingestion, in metazoa, 17; in Parame- 



Gill slits, of frog tadpole, 44. cium, 14. 



Gizzard, of earthworm, 28. Innominate, 47. 



Gland, intestinal, 17; of stomach, 17; Interdigitation, 68. 



salivary, 17. 

 Glochidia, 63, 64. 

 Glomerulus, of kidney, 18. 

 Gomphus, 65. 



Gonangium, of Obelia, 30, 31, 36. 

 Goniatite, 71. 

 Gonionemus, 52. 

 Gonotheca, of Obelia, 30. 

 . Gopherus polyphemus, 69. 

 Grading of notes and drawings, 4, 5. . Karyokinesis, 20. 

 Grantia, 52. Keys, 61. 



Grasshopper, maturation of spermatozoa Kidneys, of frog, 18, 37; of frog tadpole, 



in, 40. 44. 



Kinosternidap, 60. 

 Hair, 57; cellular structure of, 12. 



Haploid, 42. Labial palps, 63. 



Heart, of earthworm, 28; of frog, 18; of Labium, 65. 



frog tadpole, 44. Laboratory regulations, 2. 



Intestine, of frog tadpole, 44. 

 Iodine, 14. 



Ischium, 47; of frog, 48; of man, 47; of 

 pigeon, 49. 



Jelly, of frog's egg, 42. 

 Julus. 56. 

 Jurassic, 71. 



