Section XI. 

 Description op the FnuREs. 



All of the figures have been dra«n with the ail of the 

 camera lucila. A uniform scale of magnification coull not be 

 aioptel because of the wiie ran^e in the sizes of tha neurones. 

 In order that co-nparisons -nay be facilitated, the scale of 

 diamettTs of the drawing as reproduced is ?iven in the descrip- 

 tion of each figure. The orientation is accurately nnainlBined 

 in all of the drawings, the dorsal parts being uppermost as the 

 figure appears en the plate. 



REP&PKNCE LETTERS. 

 a.f.-- Ascending fibre 

 a.], .f.-- Acustico-lateral fibre 

 aq.-- Aqueduct of Sylvius 

 ar.-- Terminal arborization 

 as. p.-- Associative neurone 

 as t . -- As t rocy te 

 ax.-- Axone 

 ax.h.-- Axone-hillock 

 b.f.-- Basal nerve-fibre 

 bv . -- Blood vessel 

 cb . -- Oerebel 1 um 

 cb.cr.-- Cerebellar crest 



cb.inf.-- Inferior lobe of the cerebelluir 

 c.f.-- Communis filire 

 c.g.m.-- Central gray matter 

 ch . -- Chi asma 



(160) 



