478 
HALBERT L. DUNN 
MBL 
G7 8 
Fig. 37. A series of midsagittal tracings of the brain and brain stem. Each 
figure represents an average brain, m each 5-cm. crown-heel interval. A, ca. 
4em. CH length. B, ca. 7.5 em. CH length. C,ca.2.5 em.C Hlength. D, ca. 
17.5 cm. C H length. E, ca. 22.5 cm. C H length. F, ca. 27.5 cm. C H length 
G, ca. 32.5em.C Hlength. H, ca. 37.5 em.CH length. I, ca. 42.5 em. C H length 
J, ca.47.5 em. C H length. K, ca. 52.5 em. C H length. 
