400 
MONTGOMERY. 
[Vol. XV. 
at this place. Certain of the following terms, however, apply 
not to the true nucleoli but to the Caryosomata. 
German writers .—Nucleolus (Valentin) Keimfleck, Keimkern, 
macula germinativa (Wagner); Kernkorper (chen) (Schwann, Val¬ 
entin); Keimkorper(chen); Wagner’scher Fleck; Binnenkorper 
(Rhumbler); Hauptnucleolus, Nebennucleolus (Flemming); 
Metanucleolus (Hacker) ; Plasmosoma (Ogata); Formations- 
nucleolus (Marshall); Kernfleck, Nucleolide, Morulit (Frenzel); 
Nucleolo-Centrosoma (Keuten); Mittelkorperchen, Eunucleolus 
(Rosen); Nucleolkorperchen (Lonnberg); Stammnucleolus, 
Nebenkiigelchen (Auerbach); Hauptkeimfleck, Nebenkeimfleck 
(Leydig) ; Chromatin-Nucleolus, Paranucleolus (R. Hertwig). 
English and American writers. — Wagnerian vesicle, ento- 
blast (Agassiz); pronucleolus (Mark); nucleole, germinal spot, 
germinal dot, principal nucleolus, accessory nucleolus, proto- 
macrosome (Greenwood). 
French writers. —Nucleole, tache germinative; pseudonucleole 
(Van Beneden); tache de Wagner, nucleole plasmatique, n. 
mixte, n. nucleinien, nucleole-noyau (Carnoy); nucleole adventif 
(Roule); corps nucleolaire, nucleolite (A. Schneider); nucleole 
primitif et secondaire (Carnoy and Lebrun); corpuscule ger- 
minatif (Van Beneden). 
Italian writers. — Macchia germinativa, macchia germinativa 
principale, m. g. laterale, m. g. accessoria. 
Synonyms of the nucleolinns. — Nucleololus, Nucleollolus 
(Frenzel); Schron’scher Korn, Valentinian vesicle, entostho- 
blast (Agassiz) ; Centrosoma (Lavdowsky); nucleolo-nucleus, 
endonucleolus (Macfarlane); Nucleolinus, Keimpunkt, punctum 
germinativum (Haeckel). 
III. OBSERVATIONS. 
A. Methods of Study. 
The following observations have been made upon material 
collected, fixed, stained, and sectioned by myself, with the 
exception of the preparations of the ova of Rodalia y which 
were kindly loaned to me by Dr. E. G. Conklin. In no case 
were observations made upon the living tissue ; however, but 
