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There is a balloon hanging up, and another going to be put on the stocks: there is soap made, and making from a receipt in Nicholson's Chemistry: there is excellent ink made, and to be made by the same book: there is a cake of roses just squeezed in a vice, by my father, according to the advice of Madame de Lagaraye, the woman in the black cloak and ruffles, who weighs with unwearied scales, in the frontispiece of a book, which perhaps my aunt remembers, entitled Chemie de gout et de l'odorat.
No evidence could be obtained of electricity. Ann. der Physik und Chemie. An interesting contribution was made by M. Mercadier in a recent number of the Comptes Rendus de l'Academie Francaise.
Acoustics was a favourite science of his, and he published numerous papers upon it in Poggendorff's ANNALEN, Schweigger's JAHRBUCHER FUR CHEMIE UND PHYSIC, and the musical journal CAECILIA. The 'mechanism of walking in mankind' was another study, undertaken in conjunction with his younger brother, Edward Weber. These important investigations were published between the years 1825 and 1838.
Siemens had been trained as a mechanical engineer, and, although he became an eminent electrician in later life, his most important work at this early stage was non-electrical; indeed, the greatest achievement of his life was non-electrical, for we must regard the regenerative furnace as his MAGNUM OPUS. Though in 1847 he published a paper in Liebig's ANNALEN DER CHEMIE on the 'Mercaptan of Selenium, his mind was busy with the new ideas upon the nature of heat which were promulgated by Carnot, Clayperon, Joule, Clausius, Mayer, Thomson, and Rankine.
Apres avoir vivement cause a table, nous avons longuement cause au salon; et nous nous separions le soir a Trafalgar Square, apres avoir longe les trotters, stationne aux coins des rues et deux fois rebrousse chemie en nous reconduisant l'un l'autre. Il etait pres d'une heure du matin!
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