Biometrika, Vol. IX, Parts I and II 
Plate VII 
8. Celluloid circular scale for Outlet, dark circle diameter 9 cms., string 
marks tuberosities. Pelvis £15 California, 13,232, six sacral vertebrae. 
10. Six sacral vertebrae, all sacral in character. Roomy Outlet. Tuberosities marked. 
10-1 cms. Antero-posterior 1-75 cms. California, 13,232 (same as photo. 8). 
