1. Aristotle. 350 B.C.E. The History of Animal: Traduced by D‘Arcy Wentworth Thompson. Available online at
http://classics.mit.edu/Aristotle/history_anim.html
2. Bacon, F. 1670. Sylva Sylvarum, or, Natural History in Ten Centuries. Whereunto is Newly Added, the History Natural and Experimental of Life and Death, or of the Prolongation of Life. Published after the Authors Death by William Rawley, Doctor in Divinity, One of his Majesties Chaplains, 9th ed. London, Printed by J.R. for William Lee.
3. Bertillon, J. 1878. “[Discussion of Lexis’paper: Sur la Durée Normale de la Vie Humaine et sur la Théorie de la Stabilité des Rapports Statistiques].” Annales de Démographie Internationale 2(6–7):460–61.
4. Bongaarts, J. 2005. “Long-Range Trends in Adult Mortality: Models and Projection Methods.” Demography 42(1):23–49.
5. Browne, T. 1646. Pseudodoxia Epidemica or, Enquiries into Very many Received Tenets, and commonly Presumed Truths, 3rd ed., 1658. London, Nath. Ekins. Available online at
http://books.google.fr/books?id=kSjH4tiEhGUC&dq=Pseudodoxia+Epidemica+or,+Enquiries+into+Very+many+Received+Tenets,+and+commonly+Presumed+Truths&printsec=frontcover&source=bn&hl=fr&ei=W5FyS53qLIi14Qbjy4nYCQ&sa=X&oi=book_result&ct=result&resnum=4&ved=0CBYQ6AEwAw#v=twopage&q=&f=false