Contents 
vii 
Plate XXVIII. Median Section of the Pelvis of a Woman 35 years 
old, from a drawing by Professor Symington. She 
was rather thin ...... to face p. 501 
Plate XXIX. Median Section of the Pelvis of a Woman .'30 years 
old, from a drawing by Professor Symington. The 
subject was rather fat . . . . . . „ „ 
Plate XXX. Figs. I (a), I (b). Photographs of Surface of Constant 
Association ......... 534 
Plate XXXI. Fig. I (c). Photograph of Surface of Constant 
Association. Fig. II (d). Photograph of Brill 
type of model of Gaussian Surface „ „ 
Plate XXXII. Obstetricians Abac I. To find Probable Obstetric 
Conjugate from observed Diagonal Conjugate and 
Antero-Posterior Diameter ....... 539 
Plate XXXIII. Obstetricians Abac II. To find Probable Obstetric 
Conjugate from observed Diagonal Conjugate and 
Height of Right Hip Bone .... 
