前言早些时候我在《应用谱学》杂志上发表的一篇有关光谱学历史的文章中,曾用丰富多彩的邮票对光谱学发展史作了简要说明。由于该杂志的编者友好地建议撰写另一篇关于化学历史的文章, 也因为该杂志的几乎所有读者至少在一定程度上接触化学,所以,写一篇有关化学史方面的文章, 或许是有意义的。这篇文章也将用邮票进行论述。由于只是一篇仅限于从邮票方寸天地中看到的 INTRODUCTION Earlier in my article on the history of spectroscopy published in Applied Spectroscopy, a brief account of the history of spectroscopy was made using colorful stamps. Since perhaps the editors of this magazine kindly recommend writing another article on chemical history and because almost all readers of the magazine have at least some degree of exposure to chemistry, it might be useful to write an article on the history of chemistry of. This article will also be discussed with stamps. Because only one is confined to the world of stamps and see