Articles liés à Chemical Atlas Or, the Chemistry of Familiar Objects
Présentation de l'éditeur
The Atlas of Chemistry is offered as an extension of the principle embodied in the Author slarge Chemical Chart. That chart was published four years ago, and has met with a degree of favor from all classes of instructors rarely accorded to a novel method of illustration, especially in the department of science. It has passed through several editions, and the testimonials of its serviceableness and value as an aid in teaching elementary chemistry, which have appeared from all quarters, afford a gratifying assurance that the work was not done in vain. The atlas form has been adopted at the solicitation of numerous persons teachers and others who have expressed a desire to possess the work in a more portable and convenient shape. Though the scale of the diagrams has been so reduced as to bring them within much narrower limits, yet their application has been greatly extended, so as to embrace a larger class of subjects, and include those views of the science which have been recently established, and are of most general interest. Of the value and importance of some such plan of illustrating Chemistry there can be no longer a doubt. I ndeed, the surprise almost universally expressed is, that something of the kind was not devised and adopted long ago. The superiority of the eye over all other senses, as a means of education, is undeniable. The beginning of the intellectual progress of the human race consisted in the invention of letters and words as visible symbols of sound and thought ;and to teach those symbols remains still the starting point of education. So also with music :it rose to the dignity of a regular art only when musical notes were invented, by which it became possible to express harmonies of sound to the eye. The symbolism in both cases is perfectly arbitrary ;nevertheless, when once acquired, it becomes an instrument of wonderful intellectual power
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