1. William Blair-Bell Memorial Lecture*. Uterine Inertia
2. 3. "History of Ancient Gynaecology " W. J. Stewart McKay, 1901 , 194 .
3. 4. "Obstetric Medicine and Surgery ." F. H. Ramsbotham (2nd edition, 1844 ), appendix L, 717 .
4. 5. "A Collection of Cases and Observations in Midwifery " (3rd edition , 1754 ), 98 .