1905.] 



Cord of the Macaque Monkey. 



127 



Inversely, the same remarks apply to the curve representing the per- 

 centage of the dorsal horns to the total grey substance in the cross-section of 

 the cord. 



Bo. Ratio of the Ventral to the Dorsal Horns. 

 Table XV. — Batio of the Ventral to the Dorsal Horns taken as Unity in 

 each Cross-section of the Cord (Chart XV). 



Region of cord. 



Distance in cm. 

 from uppermost 



section of 

 I Lumbar region. 



Ventral horns. 

 Dorsal horns. 



Dorsal (thoracic) 



VI 



XII 



Lumbar— 



I" Upper . 

 I-l Middle .. 

 [ Lower . , 

 f Upper . 

 II 1 Middle ., 

 (_ Lower . 

 f Upper . . 

 III^ Middle .. 

 L Lower . , 

 f Upper .. 

 IV 1 Middle .. 

 |_ Lower . , 

 f Upper . . 

 V-^ Middle .. 

 [ Lower . . 

 f Upper . . 



VI I Middle .. 

 [Lower .. 



{Upper . . 

 Middle .. 

 Lower .. 

 Sacral — ■ 



f Upper . . 

 I< Middle .. 

 L Lower . . 

 [Upper .. 

 11^ Middle .. 

 (_ Lower ... 

 f Upper . . 



III J. Middle .. 

 [ Lower . . 

 f Upper . . 



IV < Middle .. 

 L Lower . . 



Coccygeal — 



f Upper . . 

 li Middle .. 

 L Lower . . 

 f Upper . . 

 Ill Middle .. 

 L Lower . . 

 I" Upper . . 

 in 1 Middle .. 

 I Lower .. 



0-142 

 0-268 

 -608 



-846 



1 -058 

 1 -302 

 1 -558 

 1 -681 



1 -918 



2 -064 

 •244 

 •484 

 •608 

 •794 

 •944 

 •154 



3 -205 

 3 -328 

 3 -450 

 3 557 

 3 -642 



3 -782 

 3 "906 

 4-057 

 4-197 

 4-316 

 509 

 623 

 723 

 858 

 974 

 138 

 312 



5 -486 

 5 "622 

 5-726 



5- 847 



5 -939 



6 -058 

 6 -174 



6- 278 

 6-331 



1 -84 

 1 -39 



1 33 

 1 -33 

 1 -38 

 1 -39 

 1 -47 

 1 -55 



1 -95 

 2-07 



2 -31 

 2-89 



2- 97 



3- 16 



3 -19 

 3 03 

 2-88 

 2 -65 

 2 -52 

 2 -12 

 1 -84 

 1-60 

 1 -66 



•48 

 ■33 

 •37 

 •36 

 •41 

 •31 

 ■38 

 29 

 •19 

 •13 

 •09 

 12 



1 -05 

 1-06 

 1 -05 

 -928 

 -961 

 911 

 -771 

 0-720 

 0-678 



Mean. 



1- 35 



1 -47 



2 -11 



3 01 

 3-03 



2- 43 

 1 -70 



1 -40 

 1 -36 

 1 -29 

 1.-11 



1 -05 

 0-933 

 -723 



L 2 



