DÉVELOPPEMENT DES TROQUES. 



523 



1894. Wilson (Edmund B.). Observations on the gemmule and egg 



development of marine Sponges. (Journal of Morphology, IX 



p. 277-406, pl. XIV-XXV). 

 1896. — On cleavage and Mosaic Work. (Appendix to : Crampton, 



1S96). (Arch. f. Entwkkelimgsmechanik, III, p. 19-26). 

 1898. — Considérations on Cell lineage and ancestral réminiscence 



based on a Re-Examination of some Points in the Early 



Development of Annelids and Polyclads. (Annals New-York. 



Acad. of Sciences, XI, p 1-27). 

 1891 . Wistinghausen (C, von). Untersucliungeii ùber die Entwicklung 



von Nereis DumeriLli {Mitth. Zool. Station z.Neapel X p 41- 



74, pl. VI-VII), 



1896. Zoja (R ). Untersuchungen ûber die Entwicklung der Ascaris 

 megalocephaia. (Archiv. /'. mikr. Anatomie, XL VII, p 218- 

 260, pl. XIII-XIV). 



ARCH. DE ZOOL. EXP. ET GEN. — 3 e SER. — T. X . 1902. 



34 



