440 HALBERT L. DUNN 
The absolute height of the vermis cerebelli when plotted 
against crown-heel body length (fig. 13) also forms a shallow 
curve, expressed empirically by the formula: 
Vermis cerebelli height (em.) = 0.01 (C H body length (em.))1-37 
It is 0.23 em. at 10 em. (C H) and rises to about 2.1 em. at 50 em. 
(COMAGE 
TABLE 21 
Height of the vermis cerebelli 
Formula: Vermis cerebelli height (em.) = .01 (crown-heel length (em.))1!37 
(122 cases) 
caown-nmetiexons | ovmmevepsercunor | cstoouanen | REFERENCE 
meron OF | oneenvay axo | XTMBEE 
Range Mean aa eae Mean ORO EDEEE a | 
Oto 5 
5 to 10 
10 to 15 128 |) 1026 0.3 0.4 0.3 -—0.1 14 
15 to 20 16.9 ONT. 0.2 OS 0.5 0 14 
20 to 25 22.6 |. 0.9 0.5 0.7 0.7 0 18 
25 ‘to 30 27.0 1.0 0.6 0.8 0.9 +0.1 14 
30 to 35 Byers) 1.4 0.8 ital 1.2 +0.1 16 
35 to 40 =f 1.9 1.0 1.4 1.4 0 18 
40 to 45 42.2 2.0 eal 1.6 Ue 76 +0.1 12 
45 to 50 48.2 PaaS 1.6 220 2.0 0 8 
50 to 55 Es 2.8 LG Pp 2; 0 8 
TABLE 22 
Calculated vermis cerebelli height at 5-cm. intervals of crown-heel length 
CROWN-HEEL LENGTH | Coppnuiey REIGHT eS Rie eae RATIO TO NEW-BORN 
cm. cm. cm. per cent per cent 
5 
10 0.23 10.8 
15 0.41 0.18 78.1 19.2 
20 0.61 0.20 48.8 26.6 
25 0.82 0.21 34.4 38.5 
30 1.06 0.24 29.2 49.8 
35 1.31 0.25 23.6 61.5 
40 1.57 0.26 19.8 73.7 
45 1.84 0.27 17.2 86.3 
50 2.13 0.29 15.8 100.0 
55 2.42 0.29 12.0 113.7 
