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 Caspar Frederick 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.
Gauss in his celebrated work Theoria Motus Corporum Coelestium.
His publications include: Disquisitio mathematica in causam physicam figurae et magnitudinis terrae (Milan, 1751); Saggio della morale filosofia (Lugano, 1 753); Nova electricitatis theoria (Milan, 1 755); Dissertatio de motu diurno terrae (Pisa, 1758); Dissertationes variae (2 vols.
His theory of the motion of fluids, the germ of which was first published in his memoir entitled Theoria nova de motu aquarum per canales quocunque fluentes, communicated to the Academy of St Petersburg as early as 1726, was founded on two suppositions, which appeared to him conformable to experience.
Of a priestly stole we hear for the first time in the Theoria mystica (8th century).
For animism in philosophy, Stahl, Theoria; Bouillier, Du Principe vital.
An improved set was afterwards published in London (1770), as also the theory (Theoria lunae juxta systema Newtonianum, 1767) upon which the tables are based.
Some of the works, however, with which he has been credited (including the Theoria or Theorica planetarum, and the versions of Avicenna's Canon of Medicine - the basis of the numerous subsequent Latin editions of that well-known work - and of the Almansorius of Abu Bakr Razi) are probably due to a later Gerard, of the 13th century, also called Cremonensis but more precisely de Sabloneta (Sabbionetta).
Of one-volume books on the same subject, Dr Braga's Curso da Historia da Litteratura portugueza and his Theoria da Historia da Litteratura portugueza (3rd ed., 1881) may be recommended, though the plainer Historia da Litteratura portugueza, by Dr Mendes dos Remedios (3rd ed., 1908) has the considerable advantage for foreign students of including a large number of selected passages from the authors named.
S Tractatus de Theoria Mathematica Phaenomenorum in Liquidis actioni gravitatis dettactis observatorum (Bonn, 1857).
The island first appears in history as the seat of a great Ionic festival to which the various Ionic states, including Athens, were accustomed annually to despatch a sacred embassy, or Theoria, at the anniversary of the birth of the god on the 7th of Thargelion (about May).
In 1809 he published at Hamburg his Theoria motus corporum coelestium, a work which gave a powerful impulse to the true methods of astronomical observation; and his astronomical workings, observations, calculations of orbits of planets and comets, &c., are very numerous and valuable.
Connected with observations in general we have (1812-1826) the memoir Theoria combinationis observationum erroribus minimis obnoxia, with a second part and a supplement.
Schering the Disquisitiones arithmeticae, (2) Theory of Numbers, (3) Analysis, (4) Geometry and Method of Least Squares, (5) Mathematical Physics, (6) Astronomy, and (7) the Theoria motus corporum coelestium.