60 
J. B. JOHNSTON, 
B. The Mid Brain 
a) Tectum opticum . 
Torus longitudinalis Halleri 
Torus semicircularis Halleri 
Nucleus magnocellularis bat es 
b) Side wall and base of mid brain . 
End-nucleus of Meyxerr’s bundle 
Corpus interpedunculare 2 
Nuclei of the III and IV nerves 
. The ’Tween Brain 
a) Epithalamus - 
1. The epiphysis and pineal gland . 
2. The ganglia habenulae . A: 
b) Thalamus 
1. Dorso-cephalic part of thalamus . à 
2. Central grey of thalamus. Nucleus diffusus 
3. Nucleus ruber tegmenti 
c) Hypothalamus . 
1. Lobi inferiores 
2. Corpus geniculatum . 
3. Corpus mammillare 
4. The pituitary body 
. Fibre tracts of mid and ’tween brain 
a) Tracts of tectum 
. Tractus opticus 
. Tractus thalamo- recess 
Tractus tecto-bulbaris 
. Tractus tecto-lobaris . 
. Tractus bulbo-tectalis 
. Tractus strio-tectalis . 
. Tractus tecto-cerebellaris . 
. Tractus tecto-thalamicus 
b) Tracts of the thalamus 5 
1. Tractus thalamo-mammillaris . 
2. Tracts of the central grey : 
3. Fasciculus we posterior . 
4. Saccus tracts 
c) Tracts of the epithalamus 
Bundles of Meyxert Ä 
d) Tracts of the hypothalamus . . 
1. Tractus lobo-cerebellaris et lose 
2. Tractus mammillo-bulbaris . 
e) Summary of tracts to the cerebellum 
f) Commissura ansulata À 
g) Decussations in the hypothalamus ae 
h) Decussations in the dorsal wall of the mid and 
’tween brain 
OID OP WP Hi 
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