MEDULLA OBLONGATA OF AMBLYSTOMA 



405 



Fig. 20 Transverse section through the rostral end of the auricular lobe and 

 recessus lateralis (r.l.). Fibers of the tractus spino-cerebellaris itr.sp.cb.) and 

 mesencephalic V root {r.V.mes.) are seen passing upward through the body of the 

 cerebellum to enter the decussatio veli. The tractus bulbo-tectalis (/r.&J.) 

 ascends to enter the tectum laterally of the bulbar lemniscus (Im.), which is not 

 impregnated. Dendrites of cerebellar neurones are seen entering the stratum 

 album of the area acustico-lateralis and the region of the tractus spino-tectalis, 

 which is not impregnated; cf. figures 6 and 19. Axones of these neurones 

 {tr.cb.teg.) are passing downward toward the ventral commissure. Golgi *nethod. 

 X 100. 



