OVUM AND SPERMATOZOON. Oen. Suh. 69 
Oogenesis, Branchellion^ P^rez & Gendre (715). 
Oogenesis, Sagitta^ Stevens (859). 
Oogenesis, Porifera, Gorich (337). 
Corpus luteum, Jankowski (438). — Mammals and Anamniota, Lubosch 
(561).— Histology and function, Cohn (196). 
Degeneration of ovules, Di/tiscus, Dubuisson (263). 
c. Spermatozoon, Spermatogenesis : — 
Interstitial cells and spermatogenesis, Branch a (133). 
Interstitial gland, testis, Angel & Bouin (17). — Interstitial tissue of 
testis, horse, Bouin & Angel (121). — Interstitial cells of testis, Loisel 
(554). — Interstitial gland ?, testis, Loisel (552). 
Absorption of spermatozoa in testis, Molge, Perez (714). 
Spermatozoon, ruminants, Schmincke (797). 
Spermatogenesis, Axolotl, Branca (134, 135). 
Reduction, spermatogenesis of Myxine and Spina.%\ Schreiner & 
Sghreiner (806). 
Spermatozoa, Petromyzon^ Ballowitz (33). 
Spermatozoa of Evertebrates, Retzius (760). 
Dimorphic spermat. of Prosohranch. 3foll., Stephan (857). 
Spermatozoon, Helix, Bolles Lee (512). 
Spermatogenesis, Gasteropoda Bonne vie (112). — Spermatogenesis, Cepha- 
lopoda^ Thesing (871). 
Achromatic figure and centrosome, spermatogenesis, Myriapoda, Bouin 
(118). 
Spermatogenesis, reduction, chromatin, Syromastes {Hemiptera), Gross 
(346, 347). — Blatta germanica, Wassilieff (921). — Gryllus, Voinov (909). 
Spermatogenesis, Arachnoidal Bosenberg (116).— Accessory chromo- 
some spider, Wallace (915). 
Spermatogenesis, Decapod. Crust. ^ Labbe (493). —Spermatozoa, crayfish, 
Andrews (19). 
Spermatogenesis, Ascaris, Tretjakoff (886). — Hydra, Guenther (349). — 
Porifera, Coelentera, Gorich (337). 
d. Maturation : — 
Maturation, Montgomery (639). 
Maturation, Fiona, Casteel (172). 
Maturation, tetrads, Cricstacea, Labbi^ (491). 
Chromosomes mixing of in reduction divisions, Montgomery (638). 
Polar bodies, eggs of, Ascaris, Tretjakoff (885). 
e. Fertilisation : — 
Fertilisation, Hartog (382). 
Theory of fertilisation, Buhler (151). 
Fertilisation, methods, Sghucking (811). 
Fertilisation, natural and artificial, Abrig (9). 
Fertilisation, Axolotl, hygroscopic substance and astral structure, Jen- 
KINSON (444). 
Polyspermy, effects of in Ascaris, Boveri & Stevens (130). 
Experiments as to self-fertilisation, Ascidians, Morgan (645). 
7. Embryology, Development. 
a. General : — 
History of Embryology till Harvey, Bloch (87, 88). 
History of ideas of development, Wolff, evolution or epigenesis, Wal- 
deyer (912). 
