The 5th book concludes with the death of King David I.
Each of the seven letters concludes with praise of those who have been victorious therein.
He concludes that the Roman Creed was accepted at Antioch after the fall of Paul of Samosata in A.D.
On the 6th of May he makes further experiments, and concludes: "Hence I see no reason to expect that any kind of structure or tension can be rendered evident, either in decomposing or non-decomposing bodies, in insulating or conducting states."
In connexion with the " idees directrices et organisatrices," supposed by the French physiologist Claude Bernard, and the universal will supposed by German voluntarists, Fouillee concludes that the world is a society of wills.