DonaLpson AND Davis, Human Spinal Cord. 35 
TABLE X. 
Lengths of Segments of the Cord as Determined by Ltperirz in the 
Case of a Girl of Three and a Half Years. 
Segment. Length inmm. Segment. Length in mm. 
a 4.7) ( I 8.25 
cea Bey at Hee 6.25 
| III 7-OY, err ae 4.5 
Seg LW oP, fas |) NY 4.1 
an V 8.6 4 V 2.9 
El Vi 6.8 
ee veut 6.3 I Bay 
| VIII 53h el || 3-4 
By ay LULL 3.8 
pat g80 a WM 3.5 
et 7.25 to) AY 3-0 
| III 7.0 
IV 8.9 3 
aS) V 10.3 a I 3.0 
3 | VI Litg. *O 
5 1 VII 13.3 
| 
e | VIII nie 75 
ee 6 1.5 
anes 9.6 
| XI 9.3 
| XI 7.75 
As will be seen from examining the table, the measure- 
ment for the first cervical segment is lacking in the original rec- 
ord, but it has been interpolated here on the assumption that 
it would have the same proportional value as in the cord at 
seven weeks. The measurements for a cord at this latter age 
being given by LiUperirz (p. 470), it is possible to make a cal- 
culation on this basis, and the result is the number which ap- 
pears in the Table X. Upon adding the lengths of all the seg- 
' ments together, we find the length of this cord at three and a 
half years, to be 212.95 mm. For comparison with this result, 
there is available RavENEL’s table (p. 550), giving the follow- 
ing individual measurements for the length of the cord in 
children. 
'The length for the first segment is interpolated, being given the value 
of 4.7 mm, 
