268 
MONTGOMERY. 
[Vol. XV. 
page 542, where their arrangement is according to the alpha¬ 
betical order of the authors’ names, both the zoological and 
botanical papers being in this one list. A certain number 
of contributions dealing with nucleoli are entered into the 
literature list, which I was unable to find in the libraries 
at my disposal; all such papers have been distinguished by 
an asterisk (*); the contents of some of the latter I have 
reviewed from the citations of other writers. 
Literature reviews are here given of all papers, with the 
object of furnishing a reference library on the subject; in 
Chapter IV, consequently, brief allusions only are made to the 
views of particular authors, and readers can compare their 
views by referring to the present section. This arrangement 
of the literature appears the most practical. 
A. Zoological Literature. 
1781-1860. 
Fontana ( 1781 , cited by Carnoy, ’ 84 ) was the first to figure 
the nucleolus in the nucleus, which he describes as “ un corps 
oviforme, pourvu d’une tache en son milieu.” 
The discoverer of the nucleolus in germinal vesicles is 
R. Wagner (’ 35 ), and he termed it “Keimfleck” or “ macula 
germinativa.” He notes that the germinal vesicle of Unio and 
Anodonta “zeigt constant zwei Flecke in Form von Kreisen, 
welche sich schneiden, selten finden sich Abweichungen; der 
grossere derselben mochte eine gewisse Aehnlichkeit mit dem 
Keimfleck haben.” In his “Nachtrag” to the same paper, he 
states: “Der Keim ist bei seinem ersten Auftreten eben das, 
was ich Keimfleck genannt habe. Es ist eine Schicht korniger 
Masse, welche bald einfach (Saugethiere, Schnecken, Insekten 
etc.) als Fleck erscheint, bald mehrere zerstreute Kiigelchen 
bildet (Flusskrebs, Fische, Batrachier), . . . die an der inneren 
Wand des Keimblaschens angeheftet sind.” In two subsequent 
communications (’ 36 , ’ 37 ) he notes the occurrence of nucleoli 
in the germinal vesicles of Coryna , Lucernaria , Cyanea , Chry- 
saora, As terms, and hisecta , and finds in Melolontha vulgaris 
one large and one small nucleolus. Finally he remarks : “ Viel- 
