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24. Hoffmann, C. K. — "Weitere Untersuchungen zur Entwickelungs- 



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26. HoussAY, F. — "Etudes d'Embryologie sur les Vertebres," 'Archives 



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27. Johnson, A.—" On the Fate of the Blastopore and the Presence of a 



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28. Johnson, A., and Sheldon, L. — " Notes on the Development of the 



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29. Keibel, F. — " Die Entwickelungsvorgange am hinteren Ende des 



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30. KoLLER, C. — "Untersuchungen iiber die Blatterbildung im Huhner- 



keim," 'Archiv fiir Mikroscopische Anatomic,' 1882, pp. 174 — 211, 

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31. KoLLiKEB,. — * Entwickelungsgeschichte des Menschcns und der hoheren 



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33. KuPFFER, C. — " Die Gastrulation an dem Meroblastichen Eiern," 'Archiv 



fur Anatomic und Physiologic — Anatomische Abthcilung,' 1882, pp. 

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35. LiEBERKUHN. — " Ubcr der Chorda bei Saugethieren," ' Archiv fiir 



Anatomic und Physiologic — Anatomische Abthcilung," 1882, pp. 401 

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36. MiNOT, C. S. — " The Concrescence Theory of the Vertebrate Embryo," 



'The American Naturalist,' 1890, pp. 501—516, 617—628, 702—718. 



37. MiTSUKURi, K., and Ishikawa, C. — " On the Formation of the Germinal 

 VOL. XXXII, PART IV. — NEW SER. L L 



