. Bulletin. Science. lished his findings serially in the publication of the Verein zur Beforderung des Gewerbefleisses in Preus- sen (Society for the Advancement of Industry in Prussia), of which he was editor. In 1875 these articles were brought together in the JDOok that estab- lished his fame—Theoretische Kinematik . .'' In the introduction of this book, Reuleaux wrote: In the development of every exact science, its substance having grown sufficiently to make generalization possible, there is a time when a series of changes bring it into clear- ness. This time has most certainly arrived for


. Bulletin. Science. lished his findings serially in the publication of the Verein zur Beforderung des Gewerbefleisses in Preus- sen (Society for the Advancement of Industry in Prussia), of which he was editor. In 1875 these articles were brought together in the JDOok that estab- lished his fame—Theoretische Kinematik . .'' In the introduction of this book, Reuleaux wrote: In the development of every exact science, its substance having grown sufficiently to make generalization possible, there is a time when a series of changes bring it into clear- ness. This time has most certainly arrived for the science of kinematics. The number of mechanisms has grown almost out of measure, and the number of ways in which they are applied no less. It has become absolutely impossible still to hold the thread which can lead in any way through this labyrinth by the existing methods.* Reauleaux's confidence that it would be his own work that would bring order out of confusion was well founded. His book had already been translated into Italian and was being translated into French when, only a year after its publication, it was presented by Prof. Alexander B. W. Kennedy in English trans- ; The book was enthusiastically reviewed by the weekly London journal Engineering,^- and it was given lengthy notice by the rival journal. The Engineer. The editor of The Engineer thought that the mechanician would find in it many new ideas, that he would be "taught to detect hitherto hidden resemblances, and that he must part—reluctantly, perhaps—with many of his old ; "But," added the editor with considerable justice, "that he [the mechanician] would suddenly recognize in Professor Reuleaux's 'kinematic notation,' 'analysis,' and 'synthesis,' the long-felt want of his professional existence we do not for a moment ; *^ Indeed, the fresh and sharp ideas of Reuleaux were somewhat clouded by a long (600- page) presentation; and his kinematic


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Keywords: ., bookauthorunitedstatesdepto, bookcentury1900, booksubjectscience