OVUM AND SPERMATOZOON. 
Gen. Sub. 69 
Oogenesis, Branchellion , Pisrez & 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, Dytiscus, Dubuisson (263). 
c. Spermatozoon, Spermatogenesis : — 
Interstitial cells and spermatogenesis, Brancha (133). 
Interstitial gland, testis, Ancel & Bouin (17). — Interstitial tissue of 
testis, horse, Bouin & Ancel (121). — Interstitial cells of testis, Loisel 
( 554). — Interstitial gland ?, testis, Loisel (552). 
Absorption of spermatozoa in testis, Molge , PiSrez (714). 
Spermatozoon, ruminants, Schmincke (797). 
Spermatogenesis, Axolotl, Branca (134, 135). 
Reduction, spermatogenesis of Myxine and Spinax , Schreiner & 
Schreiner (806). 
Spermatozoa, Petromyzon , Ballowitz (33). 
Spermatozoa of Evertebrates, Retzius (760). 
Dimorphic spermat. of Prosobranch. Moll., Stephan (857). 
Spermatozoon, Helix, Bolles Lee (512). 
Spermatogenesis, Gasteropod , 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, Arachnoida , Bosenberg (116). — Accessory chromo- 
some spider, Wallace (915). 
Spermatogenesis, Decapod. Crust., Labb 6 (493). —Spermatozoa, crayfish, 
Andrews (19). 
Spermatogenesis, A scan's, Tretjakoff (88 Q).— Hydra, Guenther (349). — 
Porifera, Ccelentera, Gorich (337). 
d. Maturation : — 
Maturation, Montgomery (639). 
Maturation, Fiona, Casteel (172). 
Maturation, tetrads, Crustacea, LabbiS (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, Schucking (811). 
Fertilisation, natural and artificial, Abric (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). 
