470 HALBERT L. DUNN 
0 5 10 15 £0 £5 £910) 35 AO 45 50cm. 
Fig.29 A series of curves illustrating the growth (in linear dimensions) of the 
brain, brain parts, and spinal cord in per cent of the respective new-born linear 
measurements. Abscissa: total body length in em. Ordinates: linear dimen- 
sions calculated in per cents of the respective new-born measurements. Data 
from the formulae in table 438. I, frontal-occipital diameter. II, temporal diame- 
ter. III, vermis cerebelli length. IV, vermis cerebelli height. V, pons length. 
VI, colliculi length. VII, frontospinal length. VIII, spinal cord length. IX, 
brain-cord length. 
