. The Journal of comparative neurology and psychology. VII Fig. 31. Fig. 32. Fig. 31. The second section of this series ventral to the last. X 20. Themotor and sensory roots of the trigeminus, the cochlearis and motor facialisare shown. The outer surface of the pons is toward the left. A brokenline separates the motor and sensory roots. The fibers of the motor bundleshave a much darker and more opaque stain than those of the sensory bundles. Fig. 32. The sixth section of this series ventral to the last. X 20. Themotor and sensory roots of the trigeminus are shown near their point of th
. The Journal of comparative neurology and psychology. VII Fig. 31. Fig. 32. Fig. 31. The second section of this series ventral to the last. X 20. Themotor and sensory roots of the trigeminus, the cochlearis and motor facialisare shown. The outer surface of the pons is toward the left. A brokenline separates the motor and sensory roots. The fibers of the motor bundleshave a much darker and more opaque stain than those of the sensory bundles. Fig. 32. The sixth section of this series ventral to the last. X 20. Themotor and sensory roots of the trigeminus are shown near their point of these last two sections there is nothing except their deeper stain to indicatethat bundles y and z are motor bundles. They are readily traced continuouslythrough the series as described in the text. The broken line separates themotor and sensory roots. from them; in the later foetus of 27, 37 and 42 cm. stages the mesen-cephalic root is gradually crowded closer to the motor nucleus androot and where it passes over the dorso-caudal surface of the nucleu
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