Desirous of embracing the whole circle of human knowledge, and anxious to bequeath to the world a concrete symbol of his encyclopædic genius and a display in keeping with his pecuniary resources, Baron Alexandre d'Esparvieu had formed a library of three hundred and sixty thousand volumes, both printed and in manuscript, whereof the greater part emanated from the Benedictines of Ligugé. By a special clause in his will he enjoined his heirs to add to his library, after his death, whatever they might deem worthy of note in natural, moral, political, philosophical, and religious science. He had indicated the sums which might be drawn from his estate for the fulfilment of this object, and charged his eldest son, Fulgence-Adolphe, to proceed with these additions. Fulgence-Adolphe accomplished with filial respect the wishes expressed by his illustrious father. After him, this huge library, which represented more than one child's share of the estate, remained undivided between the Senator's three sons and two daughters; and René d'Esparvieu, on whom devolved the house in the Rue Garancière, became the guardian of the valuable collection. His two sisters, Madame Paulet de Saint-Fain and Madame Cuissart, repeatedly demanded that such a large but unremunerative piece of property should be turned into money. But René and Gaétan bought in the shares of their two co-legatees, and the library was saved. René d'Esparvieu even busied himself in adding to it, thus fulfilling the intentions of its founder. But from year to year he lessened the number and importance of the acquisitions, opining that the intellectual output in Europe was on the wane. Nevertheless, Gaétan enriched it, out of his funds, with works published both in France and abroad which he thought good, and he was not lacking in judgment, though his brothers would never allow that he had a particle. Thanks to this man of leisurely and inquiring mind, Baron Alexandre's collection was kept practically up to date. Even at the present day the d'Esparvieu library, in the departments of theology, jurisprudence, and history is one of the finest private libraries in all Europe. Here you may study physical science, or to put it better, physical sciences in all their branches, and for that matter metaphysic or metaphysics, that is to say, all that is connected with physics and has no other name, so impossible is it to designate by a substantive that which has no substance, and is but a dream and an illusion. Here you may contemplate with admiration philosophers addressing themselves to the solution, dissolution, and resolution of the Absolute, to the determination of the Indeterminate and to the definition of the Infinite. Amid this pile of books and booklets, both sacred and profane, you may find everything down to the latest and most fashionable pragmatism.