( 1064 ) 
the small group of cells in the raphe in fig. 17 belongs to the 
ne. retic. Becurerew, | do not venture to state with certainty. They 
are separated caudally from the pars raphes nuclei reticularis infe- 
riores, but frontally are connected with the ne. pontis and the ne. 
retic. Breourreew. Their dorsal position in the raphe renders a con- 
nection with the ne. BecurerEW more reasonable, while the extension 
caudally from the pons makes it not probable that they belong to 
the nuclei pontis *). 
Frontally from the ne. retic. Bremrerew there is a nucleus of 
small cells (fig. 19) which ought probably to be distinguished from 
the other reticular cells, and is very possibly homologous to the ne. 
parvoe. sup. raphes of the reptiles, at least to the frontal part of 
this nucleus. Von Becnrrrew described this first in man as „Cc. cen- 
tralis superior; later he renamed it ne. centralis superior medialis 
s internus, ov simply ne. medialis to distinguish it from the large cells 
occurring laterally in the formatio reticularis, which he calls ic. 
centralis sup. lateralis. 
Let us now return to the large reticular cells. Frontally from 
Fie. 19 we see the large reticular elements soon take up a more 
circumscribed position, almost in the middle of the bulbus-half, owing 
to the disappearance of the ventro-lateral cells from the sections. 
Somewhat farther frontally still we see that the more dorsal large 
reticular cells also become fewer. 
The whole series of these large elements of the trigeminal and 
praetrigeminal region of the oblongata I would collect under one 
name, viz: nucleus reticularis superior, which may consist further 
of a ne. superior centralis s. dorsalis (b.) and a ne. superior ventro= 
lateralis (b.*). 
This ne. sup. dorsalis s. centralis thus coincides with the ne. centralis 
sup. lat. (Breemrerew), while similar to my né. sup ventro-lateralis 
would be the ne. tegmenti lat. described by KOLLKER In man as 
occurring between, the Lemniscus lat. and the Braechia anteriora ®) 
Herewith I conclude the description of the arrangement in Ma- 
cropus and Equus which on an average is the same in other mam- 
mals. The relations found in cavia, rabbit, cat, and man were in 
principle little different from those mentioned above. 
Only in Phocaena | found a more primitive arrangement, as I did 
Lj In a deaf born eat. the nucl. ret. Becht seemed to be reduced. 
2) | suppose that the nucl. paralemniscalis inferior (cells situated medial 
against the Lemn. lat ) deseribed by Konysramm in the rabbit, partially agree with 
my ne. sup. ventro-lateralis. (Journal f. Psychologie u. Neurologie 1910). 
