8o 'Journal of Comparative N emology and Psychology. 



Fig. I. Diagram of the gustatory and tactile paths in the medulla oblongata of Ameiurus, as seen 

 from above. The gustatory connections are shown on the lower (left) side of the figure, the tactile on 

 the upper (right) side. The gustatory centers are bounded by the fine dotted lines, the tactile centers 

 by the broken lines (short dashes). The neurones of the commissural nuclei are not shown in the dia- 

 gram. The position of the visceral commissura infima and its nucleus is indicated by two vertical 

 crosses (J) behind the vagal lobes; that of the somatic commissure and its nucleus by a single oblique 

 cross ( X ) farther caudad between the two median funicular nuclei. Only the long secondary tracts are 

 indicated. The short secondary and tertiary tracts from both visceral and somatic centers to the for- 

 matio reticularis, etc., are omitted. 



The data from which the diagram is constructed will be found in two previous papers (Herrick, 

 '05 and '06), where cross sections and other figures of the oblongata of Ameiurus are given. 



Fig. 2. Diagram of the gustatory and tactile paths in the medulla oblongata of Gadus morrhua, 

 as seen from above. The plan of the diagram is the same as that of Fig. i, both gustatory and tactile 

 centers being bounded by fine dotted lines. As before, the position of the visceral commissura infima 

 and its nucleus are indicated by two vertical crosses (J) and that of the somatic commissure and its nucleus 

 by oblique crosses (XXX). 



