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The Brain of Acipenser. 
A Contribution to the Morphology of the Vertebrate Brain ‘), 
By 
2 J. B. Johnston, - 
Professor of Zoology, West Virginia University, 
(From the Zoological Laboratory of the University of Michigan.) 
With plates 2—13 and 22 figures in text. 
Contents. 
I. Introduction : 
Material and Methods 
II. Gross Anatomy 
III. Minute Anatomy . 
1. Description . 
A. Hind Brain : 
a) Medulla oblongata ; 
1. Base of medulla . 
Lower olive : 
Ventral roots of the cranial nerves 
2. Dorso-lateral portion of medulla . i 
a) General cutaneous, lateral line and auditory 
centers . . 
Spinal V 
Ascending and deep ons of V 
Tuberculum acusticum . ‘ 
Lobus lineae lateralis . Es TU Le 
B) Visceral and end-bud center. Lobus vagi 
b) Cerebellum. ; ee CANON EI RE 
1. Body of cerebellum. 
2. Valvula. ; ‘ 
3. Lateral lobes of cerebellum ; 
1) Studies on Ganoid Fishes. No, III. Edited by Jacop REIGHARD. 
