THE DEVELOPMENT OF AMPHIOXUS 59 



of historical importance, as well as articles containing extensive 



literature references. 



In each reference the author's name is followed by the title of the 



work and the reference to the journal in which the article appeared, 



or to the place of publication, in case the work appeared separately. 



The number of the volume (Band, tome, etc.} is printed in black-face 



Arabic numerals, followed by the year of its publication. References 



to pages, parts, etc. are omitted except in a few instances where this 



information is necessary. 



The abbreviations of the journals more frequently referred to are as 



follows : 



Amer. Jour. Anat. American Journal of Anatomy. Baltimore and 

 Philadelphia. 



Amer. Jour. Physiol. American Journal of Physiology. Boston. 



Anat. Anz. Anatomischer Anzeiger. Jena. 



Anat. Hefte. Anatomische Hefte. Wiesbaden. 



Anat. Record. Anatomical Record. Philadelphia. 



Arch. Anat. u. Entw. Same as Arch. Anat. Physiol. 



Arch. Anat. Physiol. Archiv fur Anatomic und Physiologic. Leipzig. 



Arch. Biol. Archives de Biologic. Leipzig and Paris. 



Arch. d'Anat. Micr. Archives d' Anatomic Microscopique. Paris. 



Arch. Entw.-Mech. Archiv filr Entwickelungsmechanik der Organismen. 

 Leipzig. 



Arch. mikr. Anat. Archiv filr mikroscopische Anatomic und Entwicke- 

 lungsgeschichte. Bonn. 



Arch. Naturgesch. Archiv fur Naturgeschichte. Berlin. 



Arch. Zellf. Archiv fur Zellf or schung. Leipzig. 



Arch. Zool. Exp. Archives de zoologie experimental et general. Paris. 



Biol. Bull. Biological Bulletin. Woods Hole, Mass. 



Biol. Centr. Biologisches Centralblatt. Leipzig. 



Bull. Acad. Sci. Cracovie. Bulletin de I'Academie des sciences de 

 Cracovie. 



Bull. Mus. Comp. Zool. Harvard Coll. Bulletin of the Museum of Com- 

 parative Zoology at Harvard College. Cambridge, Mass. 



C. R. Acad. Sci. Paris. Comptes rendus hebdomaires des seances de I'Aca- 

 demie de sciences. Paris. 



C. R. Soc. Biol. Paris. Comptes rendus des seances et me moires de la 

 Societe de biologic . Paris. 



Ergeb. Anat. u. Entw. Ergebnisse der Anatomie und Entivickelungs- 

 geschichte. Wiesbaden. 



Intern. Monatsschr. Anat. Phys. Internationale Monatsschrift fur 

 Anatomie und Physiologic. Leipzig. 



Jena. Zeit. Jenaische Zeitschrift fur Naturwissenschaft. Jena. 



Jour. Anat. Physiol. Journal of Anatomy and Physiology. London. 



