THE MAMMALIAN NERVOUS SYSTEM 89 



Chap. XIII; Starr, Strong and Learning ('96); Strong ( ? 15); 

 Toldt ('04). 



The recent investigations bearing on functional localization 

 in the cerebellum (Figs. 13-16) are numerous. See Andre- 

 Thomas and Durupt ('14); Archambault ('18); Babinski and 

 Tournay ('12); Barany ('12); Black ('16); Bolk ('06); Howell 

 ('18), p. 243; Ingvar ('18); Jones ('18); Luciani ('15); Van 

 Rynberk ('07 and '12) critical summaries with full bibliogra- 

 phies; Smith ('03). 

 8. Summary of Spinal, Bulbar, and Cerebellar Tracts and Centers 



101. Now review your sketches of the cross-sections of the 

 spinal cord and brain stem, fixing in mind the entire course of 

 each tract there represented between the thalamus and the 

 lower end of the spinal cord. The individual drawings may 

 also be filled in, if desired, by the addition of other details, and 

 colored (for color scheme see Section 62). 



In the accompanying List of Conduction Pathways the more 

 important tracts of the brain stem are arranged according to a 

 functional classification, and each neuron of a conduction path 

 is given a separate entry. The tracts of the prosencephalon 

 (thalamus and cerebral hemispheres) have not yet been 

 studied; but their names are entered in the List, printed in 

 black-face type, for future reference. 



Using this List as a basis, now prepare a Table of Conduction 

 Pathways which may be made up according to the pattern illus- 

 trated on page 92, where the first three entries of the List are 

 filled into the Table. The remaining items of the List should 

 also be entered in the Table, giving each entry of the List a 

 horizontal line in the Table. In the first column of the Table 

 in place of the name of the tract we have entered, for economy 

 of space, simply the numerical symbols of the tracts as given in 

 the List. 



Not all of the tracts here listed can be demonstrated either 

 by dissection or by the study of microscopic sections of the nor- 

 mal nervous system. Their courses have been demonstrated 

 by a combination of anatomical, physiological, and pathol- 

 ogical observations. The data for the Table will, accordingly, 

 be derived partly from your laboratory notes and partly from 

 the reference books. 



