Wilhelm Ostwald eBooks
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Introduction to Chemistry. E-book. Formato PDF Wilhelm Ostwald - Forgotten Books, 2017 -
More attention than usual is paid to the development of first principles. It was rather surprising to find how far the natural development of chemical conceptions coincides, on the one hand, with their historical development, and on the other hand, with the demands of rational pedagogics. The explanation of the fundamental conceptions — substance, solution, mixture, their properties and characteristics — not only forms the logical basis of chemical instruction, but makes possible, as well, the system atic description of the more important chemical operations and methods bf separation, which must be understood before a good knowledge of chemistry is acquired. The first third of the book contains a simple, experimental development of these general chemical relations, and the experiments chosen for illus trating and demonstrating these relations are performed, for the most part, with well-known substances. They suffice, at the same time, to make the beginner so well acquainted with such phenomena that a sound empirical basis is obtained for the systematic study of chemistry, and thereby a feeling of progress is obtained. In this way, the student acquires a certain amount of thorough knowledge, which is more advantageous for future work than a much greater accumulation of half — digested fragments of isolated facts.
The Fundamental Principles of Chemistry: An Introduction to All Text-Books of Chemistry. E-book. Formato PDF Wilhelm Ostwald - Forgotten Books, 2017 -
In Chemistry research of this kind has been undertaken only casually and over small portions of the field. Franz Wald is one of the independents who has been working along this line for many years. General appreciation of the fundamental character of such investigation extends very slowly indeed. Three years ago, on the occasion of the Faraday lecture, I made an attempt to arouse the interest of chemists in these matters, but the result was not very encouraging. But few expressions of opinion were offered on this occasion, and these were largely contradictory in nature. It was quite evident that the question at issue was not clearly understood, and the entire matter was strange, even to chemists of note. But I know from personal experience that patient and continued labour can accomplish wonders even when the case seems hopeless. One must wait for the right time, and I am convinced that the time for this matter has arrived.