Note 75 — Chapter IV
Albert Heyem Nachmen Baron translation
Paulhan ("De l'invention," Rev. Philos., December, 1898, pp. 590 ff.) distinguishes three kinds of development in invention: (1) Spontaneous or reasoned—the directing idea persists to the end; (2) transformation, which comprises several contradictory evolutions succeeding and replacing one another in consequence of impressions and feelings; (3) deviation, which is a composite of the two preceding forms.