View source for File:Mann1927 fig01.jp2

'''Fig. 1''' A. The third nerve nucleus in a  Selachian. P.L.B = posberior longitudinal bundle.

B. The nucleus in Ganoids and Teleosteans. D = dorsa.l nucleus; V = ventrs.l nucleus.

C. The nucleus in the alligator. D.L = dorso-lateral and V.M = ventro-median group of cells. 

D. The nucleus in the lizard Varaxnus. Ac =accessory nucleus.

E. The nucleus in the hen. Ac = accessory nucleus; D.M = dorso-median nucleus; D.L = dorso-lateral nucleus; P.L.B : posterior longitudinal bundle; V. M = ventro-median nucleus.

F. The nucleus in man. Daznucleus of Darkschewitsch; M = medial part and L = lateral part of accessory nucleus; D.L = dorso-lateral main nucleus; V.M = ventro-median main nucleus; P = Perlia’s or median nucleus.