INDEX OF AUTHORS 



317 



Fischel, A. : hybrid Echinoid larvae, 



261. 



variability of Duck embryos, 71. 

 Fischel, H. : isolated blastomeres of 



Ctenophora, 210, 211. 



derangement of blastomeres in 

 Ctenophora, 211. 



Fischer : artificial parthenogenesis, 



124. 

 Foot : polar rings in Atiolobophora, 



251. 



Garbowski : function of pigment 

 ring in Strongylocentrotus egg, 192. 



first furrow and sagittal plane in 

 Echinoids, 250. 



grafting of blastulae fragments of 

 Echinus, 202. 



Gerassimow : size of nucleus and 

 cells in Spirogyra, 269. 



Giacomini : need of oxygen for the 

 Chick, effect of low atmospheric 

 pressure, 109, 110. 



Giardina : differentiation of chroma- 

 tin in female cells of Dytiscus. 



Godlewski : the respiration of the 

 Frog's egg, 110, 112, 113. 



heterogeneous cross-fertilization, 

 262. 



Graf : fusion of blastomeres, 56. 

 Greeley : artificial parthenogenesis 

 produced by cold, 108. 



low temperatures and absorption 

 of water, 108. 



Grobben : Cetochilus, 22. 



Groom : effect of fertilization in 



Cirripedes, 250. 

 Gruber : regeneration in Protozoa, 



254. 

 Gurwitsch : monstrosities produced 



in Amphibian embryos by chemical 



reagents, 120, 123. 



Hacker : Cyclops, 22. 

 Haeckel : recapitulation, 16. 



development of fragments of 

 blastulae of Crystallodes, 181, note. 



Haller : preformation and epigenesis, 



15. 

 Harvey : epigenesis, 13. 



metamorphosis, 14. 



Hecker : growth of the human em- 

 bryo, 62, 63. 



Hensen : growth of guinea-pig em- 

 bryos, 62. 



Herbst : potassium, sodium, and 

 lithium larvae of Echinoderms, 

 136-140. 



significance of monsters for origin 

 of variations, 141. 



Herbst : necessity of elements present 

 in sea- water for normal develop- 

 ment of Echinoid larvae, 141 sqq. 



separation of blastomeres of Sea- 

 urchins in calcium-free sea-water, 



45. 



stimuli in ontogeny, 20, 272, 273, 

 285. 



formation of Arthropod blasto- 

 derm oxygenotactic, 114. 



arms of Pluteus due to presence of 

 skeleton, 137, 138, 144, 149, 274, 275. 



Herlitzka, development of half-blasto- 



meres of Newt, 173. 

 Hertwig, O. : centrifugalized Frog's 



egg, 29, 87. 



rules for nuclear and cell division, 

 31, 32, 85. 



confirmed by pressure experi- 

 ments, 34-36. 



gravity and Echinoderm eggs, 78. 



insemination of Frog's egg, 79. 



cardinal temperatures for Rana 

 fusca and esculenta, 97. 



monstrosities produced by high 

 and by low temperatures, 99. 



temperature and rate of develop- 

 ment, 100. 



monstrosities produced in Amphi- 

 bian embryos by sodium chloride, 

 119, 135. 



first furrow and sagittal plane in 

 Frog's egg, 165. 



compressed eggs : disproof of quali- 

 tative nuclear division, 34-36, 168, 

 169, 240. 



development of half-blastomere of 

 Frog's egg, 169. 



mutual interactions of develop- 

 ing parts, 271, 285. 



Hertwig, 0. and R. : fertilization 

 processes altered by heat and cold, 

 107. 



by alkaloids, 126 sqq., 263. 



His: mechanical explanation of 

 development, 3. 



germinal localization, 17, 158. 



the blastoderm oxygenotropic, 114. 

 Hunter : artificial parthenogenesis 



by concentrated sea-water, 124. 



lijima : spiral asters in Nephelis egg, 

 40. 



Jenkinson : pressure experiments on 

 eggs of Antedon, 37, note. 



abnormalities of Frog embryos 

 produced by various solutions not 

 due to increased osmotic pressure, 

 120, 133-135. 



