570 ON THE CONNEXION OF THE ANTERIOR COLUMNS WITH THE CEREBELLUM, 
Description of the Plate. 
Plate XXXVIII. 
Fig. 1. represents the medulla oblongata, pons Varolii, and a portion of the cere- 
bellum. 
The following letters refer to the same parts in both figures. 
a. Pons Varolii. 
b. Cerebellum. 
c. Corpus pyramidale. 
d. Corpus olivare. 
e. The cerebellic fibres of the anterior columns running up to the cerebellum, 
and forming a layer on the corpus restiforme, or processus e cerebello 
ad medullam oblongatam. 
f. Sensory root of the fifth pair of nerves running through the pons Varolii, of 
which a section has been made to expose it. 
g. Anterior root of one of the spinal nerves. 
h. Posterior root of one of the spinal nerves. 
Fig. 2. represents the medulla oblongata and pons Varolii. 
The following letters refer alone to Fig. 2. 
c*. Decussation of the anterior columns. 
i. Fibres of the corpora restiformia derived from the posterior columns. 
k. Antero-lateral columns. 
l. Posterior columns, separated from the above by 
m. The posterior peaks of cineritious substance. 
