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He translated the classic work of Gauss, Theoria Motus Corporum Celestium, and made the office a sort of informal school, not, indeed, of the modern type, but rather more like the classic grove of Hellas, where philosophers conducted their discussions and profited by mutual attrition.

It is a striking example of the difficulty of getting people to use their own powers of investigation accurately, that this form of the doctrine of evolution should have held its ground so long; for it was thoroughly and completely exploded, not long after its enunciation, by Casper Friederich Wolff, who in his "Theoria Generationis," published in 1759, placed the opposite theory of epigenesis upon the secure foundation of fact, from which it has never been displaced.

It is Coleridge with his "The writings of Plato, and Bishop Taylor, and the Theoria Sacra of Burnet, furnish undeniable proofs that poetry of the highest kind may be written without metre." In such passages as these, how generous are Sidney, Shelley, and Coleridge to the prose-men!

Such was the state of thought when in 1759 K. F. Wolff published some of his studies in the work Theoria generationis, where he maintained, on the strength of experiments and microscopic observations made on the embryos of fowls, that new organisms are not pre-formed, but that they create themselves entirely, starting from nothing that is, from a microscopic cell, simple as are all primitive cells.

It is ancient as life, and before man was, it was. It is the transference to the sphere of States of the deepest instinctive yearning of all being, from the rock to the soul of man, the yearning towards peace, towards the rest, the immortal leisure which, to apply the phrase of Aristotle, the soul shall know in death, the deeper vision, the unending contemplation, the theôria of eternity.

The most popular eighteenth-century speculation as to the ultimate constitution of matter was that of the learned Italian priest, Roger Joseph Boscovich, published in 1758, in his Theoria Philosophiae Naturalis.

1 We must here distinguish sensation from feeling proper, in which sensation and motion merge in mercurial balance. 3 De motu animalium and Theoria mediceorum planetarum ex causis physicis deducta. 4 Knowledge of this biological rhythm is still preserved among native peoples to-day and leads them to take account of the phases of the moon in their treatment of plants.

In his "Theoria philosophiæ naturalis," he tried to prove that bodies are composed not of a continuous material substance but rather of innumerable point-like structures or particles which are without any extension or divisibility. Boscovich's philosophical system can be called a dynamistic atomismus.

Nothing worth repeating is known of their lives. Boerhaave speaks with commendation of many passages in their works, and Paracelsus esteemed them highly: the chief are "De Triplici Ordine Elixiris et Lapidis Theoria," printed at Berne in 1608; and "Mineralia Opera, seu de Lapide Philosophico," printed at Middleburg in 1600. They also wrote eight other works upon the same subject.

For animism in philosophy, Stahl, Theoria; Bouillier, Du Principe vital. ANIMUCCIA, GIOVANNI, Italian musical composer, was born at Florence in the last years of the 15th century. At the request of St. Filippo Neri he composed a number of Laudi, or hymns of praise, to be sung after sermon time, which have given him an accidental prominence in musical history, since their performance in St. St.