PLATE 12 
EXPLANATION OF FIGURES 
52 Neurone from the nucleus olfactorius lateralis. Golgimethod. 93. From 
sagittal section. This cell is found in the dorso-lateral portion of the hemisphere, 
its neurite enters the tractus strio-thalamicus. 
53 Neurone of the nucleus pyriformis. Golgi method. 93. From sagittal 
section. Most of the neurites from cells of this character and location enter the 
tractus olfacto-hypothalamicus laterals. 
54 Transection through the region of the recessus preopticus. Ramdén y Cajal 
method. 46. 
55 Transection through the caudal part of the anterior commissure. Weigert 
method. X 17. 
corp. precom., pars supracom., corpus precommissurale, pars supracommis- 
suralis; n. opt., nervus opticus; nucl. com. lat., nucleus commissuralis lateralis; 
rec. preopt., recessus preopticus; tr. hyp. olf. med., tractus hypothalamo-olfactorius 
medialis; tr. med. preopt., pars ant., tractus mediano-preopticus, pars anterior, 
consisting of fibers originating in the anterior part of nucleus medianus and 
terminating about the recessus preopticus; tr. med. preopt., pars post., tractus 
mediano-preopticus, pars posterior, consisting largely of fibers originating in 
the commissure bed and ending about the third ventricle in the region of the 
nucleus preopticus; tr. olf. med., pars lat. +c. hipp., pars post., tractus olfactorius 
medialis, pars lateralis plus commissura hippocampi, pars posterior; tr. olf. thal. 
med., pars dors., tractus olfacto-thalamicus medialis, pars dorsalis ; this component 
of the medial forebrain bundle appears in this section for the first time in the draw- 
ings; tr. olf. thal. med., pars vent., tractus olfacto-thalamicus medialis, pars ven- 
tralis; tr. strio-thal. cruc., tractus strio-thalamicus cruciatus; tr. strio-thal. incruc., 
tractus strio-thalamicus incruciatus; tr. fen., tractus teniae, the tractus olfacto- 
habenularis of Kappers, Goldstein, etc. 
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