50 Gen. Sub . 
1. General subjects* 
to extended chromatin granules of the germinal vesicle. Applies to cat, 
rat, chick, pigeon, &c.; Mertens (346). 
Structure of germinal vesicle in ovarian ovum of Triton; Born (51). 
Egg-shell of Echidna , &c., the keratin-substance in egg-shell of 
Echidna , as in Scy Ilium, Baja , birds, reptiles; Neumeister (389). 
b. Spermatozoon. 
Spermatozoa of Arthropods; Ballowitz, K. (18): of Tunicates, 
Molluscs, Worms, Echinoderms, and Ccelentera ; Ballowitz, E. (17). 
Critical summary of recent work on reducing divisions ; Ruckert (470). 
Reducing divisions in spermatogenesis ; vom Rath (442). 
Spermatological studies ( Paludina vivipara , Antaeus flaviatilis , Ascaris 
megalocephala) ; Auerbach (14). 
Spermatogenesis in silk-moth ; Verson (546), Nogakushi (390) : 
in insects ; Ciiolodkovsky (94) : of Caloptenus ; Wilcox (575). 
Spermatogenesis in Decapod Crustaceans ; Sabatier (478) : in Tel- 
phusa\ Mari (331) : in Lumhricus ; Calkins (82). 
Some points in spermatogenesis of Mammals ; Moore (371). 
Metamorphosis of attraction-sphere in spermatogonia of Salamandra 
maculosa. At end of summer the sphere breaks up into little bodies aud 
is reconstituted in spring ; possibly the disruption only affects the cortical 
portion. Evidence of nuclear and even nucleolar elimination of chro- 
matin into the cytoplasm, possibly corresponding to “ reduction karyo- 
gamique. ,> Collection of a large number of equally enigmatical 
phenomena observed by others ; Meves (348). 
Ebner’s spermatoblasts represent a union of the plasmic debris of 
Sertoli’s cells with groups of spermatozoa ; Tellyesniczky (532). 
Degeneration of cells aud nuclei, karyolysis of degenerating cells in the 
testes of Salamandra maculosa due to parasites, of which one is named 
Macrococcidium caryolyticum ; Druner (130). 
The spermatogenetic function ; Piana & Sertoli (419). 
c. Maturation. 
Critical summary of recent work on reducing divisions ; ROckert 
(470). 
Reducing divisions in Selachians ; Moore (370). 
Phenomena of maturation ; Mondino & Acquisto (366, 367). 
Maturation in general, and in Copepods ; ROckert (471). 
Maturation in earthworm ; Foot (162). 
Maturation quite independent of fertilisation in the trout; Blanu (44). 
Maturation of parthenogenetic ova of Artemia salina : Abnormal 
segmentation very common, possibly due to deficiency of chromatin, 
caused by extrusion of a second polar body, as sometimes occurs; BkaUER 
(64). 
