EMBRYOLOGY, REPRODUCTION, ETC. 
Gen. Sub. 69 
Origin of head-skeleton “ Mesectoderm,” Buchs (113). 
Development of head, terms, Froriep (257).—Development of head- 
region vertebrates, Rabl (662), Froriep (256).—Occipital region, Froriep 
(258). 
Auditory mechanism, Mammalia , Denis (193). 
Lung of vertebrates, Moser (587). 
Degenerative process, tail, Zietzschmann (915, 916). 
Blastopore, Tropidonotus , Ballowitz (35). 
Gastrulation, Bufo, King (428). 
Development of kidney of Amniota, Schreiner (724). 
Development of brain and cranial nerves in Anamniota, Johnston (405). 
Embryology of Lepidosiren, Kerr (423).—Entoblast yolk sac, fishes, 
Kopsch (445).—Head of Selachians , Dohrn (204).—Alimentary organs, 
Amia, Piper (641). 
Molgula and allies, Damas (168). 
Development, incl. early stages, of Phoronis ( Actinotrocha ), Iwagi Iked a 
(389), Masterman (548); of Phoronis , Selys (734), Ikeda (389); of Sagitta , 
Doncaster (205); of Trochus , Robert( 687).—Embryonic and postembryonic 
Lingula , Yatsu (901).—Cell-division in earliest stages, Lepas , Bigelow 
( 78).—Segmentation line, Atyephira (Crustacea ), Ishikawa (392).—Meso- 
blast, Thalassema , J. C. Torrey (811).—Embryology of Zoogonus , Gold¬ 
schmidt (301).—Of Gonionema , Perkins (633).—Embryology and develop¬ 
ment of Echinus , MacBride (529). 
Vitreous body and lens of eye, van P^e (829), Rabl (661). 
c. Experimental;— 
Postgeneration, K. Ziegler (914). 
Blastomere experiments, Maas (528). 
Orientation of embryo, gastrulation, Roux (696).—Gastrulation, Rhum- 
bler (680). 
Early stages of development, centrosomes etc. of unfertilised eggs, 
Wassilieff (856). 
Early stages in artificially fertilised ovum of Cristiceps , Kopsch (444). 
Artificial parthenogenesis, Ariola (29, 30), Basse (42), Bataillon, Rana 
(44, 45), Bryce, Echinoderma (112), Delage (183, 186, 187), Driesch (211); 
in Annelids, M. H. Fischer (241), Greely (308), Kostanecki (453), 
Lillie (498), Loeb (511), Loeb & Lewis (513), Michel (565), Tichomirow 
(804), Treadwell (813), Viguier (834), Winkler (893). 
On mutilated eggs, frog, Morgan (579).—Constricted eggs, Triton , 
Spemann (759).—Portions of eggs, Echinus microtuberculatus , Stevens 
( 774).—Eggs of birds, Schimkewitsch (714).—Fowl, Schimkewitsch 
( 716).—As to germinal layers, chick, Strahl & Grundmann (781).— 
With epithelium of yolk-sac, Schaper (707).—On nervous system, Zin- 
gerle (917). 
Teratoma, F£r£ & Pettit (232). 
Temperature and parthenogenesis, Viguier (833). 
Carbonic acid, Delage (184). 
Inorganic substances in Echinoderm development, Herbst (344). 
Gravity, or autonomy, Kathariner (413), Keibel (418), Morgan (582), 
Moszkowski (588), Roux (695).—Gravity and symmetry of egg of frog, 
Moszkowski (589). 
8. Reproduction, Sex, Heredity, Regeneration. 
a. General:— 
The continuity of life, presidential address, van Beneden (61). 
