本书共17章,447页,内容简明清淅,虽然对于以化学为主科的学生,在某些部份,尚需加以补充,一般讲来,是相当成功,不失为现阶段中优良的教本。孙作为先生在“化学”13卷3期上提出对于本书的意见,笔者认为非常恰当,笔者愿再提出几点,供刘先生修改时的参考。第119页由氧化还原法制氧,在所举各例中,并未说明怎样从氧化还原的关系得着氧气,孙先 This book consists of 17 chapters, 447 pages, concise and clear, although for chemistry-based students, in some parts, still need to be supplemented, in general, is quite successful, after all, an excellent textbook at this stage . Mr. Sun Zhaoxi put forward his opinions on this book in “Chemistry” Volume 13, Volume 3, which I think is very appropriate. I would like to make a few points for reference when Mr. Liu revises. P. 119 Oxygen generation by the redox method, in the examples cited, did not show how oxygen was obtained from the redox relationship,