dS 
Birds. 
Branpis') has made a very exhaustive investigation of the cere- 
bellum of different birds. 
The nuclei cerebelli has also been made the subject of research 
by CAJAL ®). 
The cerebellar nuclei are described by Branpis as consisting of 
eell-groups which are connected with each other by cell-bridges. 
He divides them into a nucleus lateralis and a nucleus medialis. 
The nucleus lateralis consists of various cell groups which ven- 
trally cannot be sharply distinguished from the cells which lie in the 
erus cerebelli. The latter are called by Branpis ne. eruris cerebelli 
(followtng Steps) but Branpis included in this nucleus also the 
large polygonal cells lying in the oblongata, which form a whole 
with the cells of the erus. Sxmazono*) rightly terms this whole 
magno-cellular nucleus the Deiters nucleus. 
In truth the Deiters cells in birds reach far dorsally into the 
crus cerebelli, and border directly on the nucleus lateralis cerebelli. 
According to Saimazono the most lateral groups, which on the outside 
Tu Daten 
CR 
Fig. 10. Catharistes atratus, 
2) loc. cit. 
5) loc. cit. 
