OVUM AND SPERMATOZOON, EMBRYOLOGICAL. Gen. Sub. 47 
Garbe (223).—In Sparrow ; Loisel (395, 399, 402).—In mammals; Regaud 
(562, 563, 568); Schoenfeld (607); Spangaro (622). 
Phagocytosis in spermatogenesis ; Regaud (569). 
Variations in chromatin in spermatogenesis; Regaud (564). 
Tetrad-groups in spermatogenesis ; Prowazek (538). 
Formation of chromosomes in spermatogonia of rat; Regaud (565). 
Interstitial cells and accessory functions of testes; Ganfini (222); 
Regaud (567); Regaud & Policard (571). 
Sertoli’s cells ; Loisel (395, 400). 
Interstitial cells of testes; Regaud (566). 
Influence of fasting on spermatogenesis; Loisel (398). 
c. Maturation. 
. 
Cytoplasmic maturation; Delage (133-135).—In Crepidula ; Conklin 
(109).—In Polyclads ; Gerard (241).—In Polystomum ; Halkin (274).— 
In Bufo ; King (343).—In Unio; Lillie (381).—In Lebias ; Mazza (432). 
—In Ascaris; Moszkowski (466).—In Muscidce ; Noack (479). 
Maturation in Amphibian ova; Bataillon (31). 
Chromatin diminution in Nematodes ; Bonnevie (60). 
Heterotypical division in maturation ; Bryce (83). 
Synapsis stage of germ-cells, significance of; Montgomery (453). 
Polar bodies in fertilised and unfertilised ova; Petrunkewitsch (518). 
d. Fertilisation. 
Theories of fertilisation; Delage (136); Loeb (385).—In Hcementeria ; 
Bolsius (57,58).—In Crepidula ; Conklin (109).—In Gregarines; Cuenot 
(116).—“Specietat” in fertilisation; Dungern (164).—Is there an enzyme 
in spermatozoa?; Gies (248).—Fertilisation in Polystomum', Halkin (274). 
—In Bufo; King (343); Lillie (381).—Chemical aspect of fertilisation; 
Magini (415). 
Kinetic correlation of the sex-cells; Weill (700). 
Osmotic pseudogamy; Ariola (15); Giard (245). 
Fertilisation in etherised eggs; Wilson (713). 
7. Embryological. 
a. General. 
Co-operative treatise on embryology ; Hertwig (293a). 
Organic regulations ; Driesch (144, 145); Roux (592). 
Chemical conditions of development; Herbst (286). 
Formative stimuli in development; Herbst (288). 
Commission on embryology, proposal; His (298). 
Organ-forming areas; His (299). 
The problems ’ of development; T. H. Morgan (464). — Germ-layer 
theory; Hertwig (292); Saint-Remy (596, 597). 
b. Development of Particular Organs and Parts. 
Mechanical factors in development of bone; Banchi (24). 
The Vertebrate body; Dohrn (142).—Vertebrate brain; Studnicka 
(641). 
The neuropore and the nasal canal; Peter (517). — Closure of neuropore; 
Raffaele (551).—Of striped muscle; Godlewski (255).—Of pancreas in 
Amniota ; Volker (685).—Of kidneys ; Gerhardt (243).—Neplirocytes; 
Ribaucourt (581).—Of liver; Hunter (317). 
