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CHARLES BROOKOVER 



cytoplasm. On account of its deeper staining in hematoxylin 

 preparations, the ganglion of the nervus terminalis is easily 

 made out at a glance in stages two or three days older than this, 

 i. e., in this series about five days after hatching (fig. 7, a). I 

 was not able to recognize the ganglion until about ten days 

 after hatching in another series preserved at longer intervals in 



Fig. 7. Horizontal section of Amia about five days after hatching when the 

 ganglion of the nervus terminalis is first recognizable. Note their position at a 

 near the artery b. The olfactory nerve has two main rami to the nasal capsule c 

 Olfactory bulb at d. Iron hematoxylin and eosin. X 340. 



the previous year. This may be due to more rapid development 

 during the warm weather of this present season. But the recog- 

 nition of the ganglion at an earlier date may be due in part to 

 better fixation and staining, as well as to the fact that the sec- 

 tions were cut horizontally so as to show the whole length of the 



