FIG. 352. MAN. LEVEL OF THE IM LKIOK COLLICULUS. 

 CEN, CiTitral Gray Mattt-r; ctt, Central Tegmental Tract; ic, Inferior C^illieulus; lf, Lateral Fillet; Ml", 

 Mesial Fillet; ntk, Trochlear Nucleus; I'D, Prcdorsal Bundle; pl. Posterior Longitudinal Fasciculus; i>\. 

 Pontile Nuclei; i>v. Pyramid; ref. Reticular Formation; rst. Rubrospinal Tract; si>T, Spinothalamic Tract; 

 SPX, Crossing of the Superior Ccrelnllar Peduncle. [Accession Man. Section C547. Actual Size 22 X 24 mm.) 



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