58 



ANATOMY 



calities and for each of the six cortical layers. The locations 

 for the samples are shown in figure 2. 



The method and material was that used for the previous 

 study, but the unit volume in this latter instance is 100/z 3 . Table 

 24 condensed from table 3 (Craigie, '21) last half, gives the 

 length of the capillaries in /z for this unit volume. At the same 

 time it gives the ratio of each of the values to that for the ventral 



10000 



9000 

 8000 

 7000 



eooo 



5000 



4000 

 3000 



2000 



14 IS 16 17 18 



19 ZO 

 rti ef Br.ii 



Chart 2 Graph showing the relative average vascularity in p of the regions 

 studied; unit volume ISO/* 2 X 200/x. 



Regions 



1, fasciculus cuneatus 12, 



8, ventral funiculus IS, 



S, lateral funiculus 14, 



4, pyramidal tract 15, 



5, fasciculus longitudinalis dorsalis 16, 



6, substantia gelatinosa Rolandi 17, 



7, nucleus motorius VII 18, 



8, nucleus XII 19, 



9, nucleus motorius V 20, 



10, ventral horn; spinal cord 21, 



11, spinal V nucleus 



nucleus of Deiters 



molecular layer of cerebellar cortex 



dorsal horn; spinal cord 



inferior olive 



superior olive 



chief sensory V nucleus 



granule layer of cerebellar cortex 



nucleus dentatus 



chief vestibular nucleus 



dorsal cochlear nucleus 



