AUTHOR'S ABSTRACT OF THIS PAPER ISSUED 

 BY THE BIBLIOGRAPHIC SERVICE, DECEMBER 9 



STUDIES ON THE NERVUS TERMINALIS: MAMMALS^ 



OLOF LARSELL 

 Department of Anatomy, University of Wisconsin 



FORTY-NINE FIGURES 



CONTENTS 



I. Introduction 3 



Discovery and naming 3 



Conditions in the different classes of vertebrates 5 



II. Descriptive part 12 



Material and methods 12 



1. The nervus terminalis of the cat 16 



Histological 26 



Types of ganglion cells 26 



Fibers and fiber networks 33 



Nerve terminations 37 



2. The nervus terminalis of the beef 43 



Histological 48 



Structure of nerve bundles 48 



Nerve terminations 50 



3. The nervus terminalis of the mule and the horse 51 



The mule 51 



Histological 55 



The horse 57 



4. The nervus terminalis of the dog, the squirrel, the human, and of 



embryos of pig, sheep, and rabbit 61 



III. Summary and comments 62 



IV. Bibliography 64 



I. INTRODUCTION 



Discovery and naming. The cerebral nerve now known as the 

 nervus terminahs first began to attract the attention of morphol- 

 ogists in 1894. In that year Pinkus described in the dipnoan 

 fish, Protopterus, a hitherto unrecognized nerve of the forebrain. 



1 Contribution from the Zoological Laboratory of Northwestern University, 

 William A. Locy, Director. 



3 



