IOWA ACADEMY OP SCIENCE 
187 
but they are certainly stimulated to the utmost by the success of their neigh- 
bors, and in them the visual memory impressions will stay just the same. In 
closing I would like to state that I am convinced that a great deal more benefit 
can be derived from the combining of the two methods of dissecting mentioned 
than from either method alone, but of the two scraping seems to stand first. 
Steuctures of the Cerebrum Mentioned in the Oedee foe Dissection. 
1. Corpora mamillaria. 
2. Pars tectae columnae fornicis. (Also pars olfactoria columnae fornicis.) 
3. The commissura anterior. (Also pars olfactoria commissurae anterior.) 
4. The fasciculus thalamo-maillaris (Vico D'Azyr). 
5. The pedunculus corporis mamillaris. 
6. The tractus peduncularis transversus. 
7. The cingulum. 
8. The fasciculus occipito-frontalis. 
9. The fasciculus longitudinalis superior, 
10. The fasciculus perpendicularis. 
11. The fasciculus longitudinalis inferior. 
12. The fasciculus uncinatus. 
13. The corpus callosum. 
14. The ventriculus lateralis (its parts, also optic radiations and their rela- 
tion to the outer wall of the cornu poster ius). 
15. The septum pellucidum. 
16. The fornix (its part). 
17. The tela chorioidea ventriculi tertii. 
18. The ventriculus tertius. 
19. The thalamus. 
20. The claustrum (also capsula externa). 
21. The nucleus amygdalae. 
22. The capsula interna (its parts). 
23. The nucleus lentiformis. 
24. The nucleus caudatus. 
25. The taenia terminalis (also pars olfactoria taeniae terminalis). 
26. The commissura media. 
27. The commissura posterior. 
28. The corpus pineale and the corpus geniculate laterale et mediale. 
I hope to show an entire series of scraped specimens in my dissector of head 
and neck, which is nearly ready. 
