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 Biologie. Leipzig and Paris. 

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

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



Leipzig. 

 Arch. mikr. Anat. Archiv fiir mikroscopische Anatomie und Entwicke- 



lungsgeschichte. Bonn. 



Arch. Naturgesch. Archiv fur Naturgeschichte. Berlin. 

 Arch. Zellf. Archiv fiir Zellforschung. Leipzig. 



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

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

 Biol. Centr. Biologisches Centralblatt. Leipzig. 

 Bull. Acad. Sci. Cracovie. Bulletin de V Academic 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 del'Aca- 



demie de sciences. Paris. 

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



Societe de biologie. Paris. 

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



geschichte. Wiesbaden. 

 Intern. Monatsschr. Anat. Phys. Internationale Monatsschrift fiir 



Anatomie und Physiologic. Leipzig. 



Jena. Zeit. Jenaische Zeitschrift fiir Naturwissenschaft. Jena. 

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



