袁翰青先生在“科学通报”1954年12月号发表的“造纸在我国的发展和起源”一文,我认为有些分析和论断还值得商榷,现在写在後面。一关於蔡伦以前的纸袁先生认为“有很多理由使我们相信”,在蔡伦以前“已经有了植物纤维造的纸了”。“由动物纤维的原料变到植物纤维,……可能在西汉後期”。但我们从袁先生具体提出的理由,重行分析,并不能得出这样的结论。袁先生引用了四个文献资料。袁先生引 Mr. Yuan Hanqing’s article “Development and Origin of Papermaking in our Country” published in the Bulletin of Science in December 1954, I think some of the analyzes and assertions are still open to question and are now written in the back. A paper on Cai Lun’s previous paper, Mr. Yuan believes that “there are many reasons to believe us.” Before Cai Lun, “there was already paper made from plant fibers.” “From the animal’s fiber into plant fibers, ... probably in the late Western Han Dynasty.” However, based on the specific reasons put forward by Mr. Yuan, we can not conclude such a conclusion by re-analyzing the matter. Mr. Yuan cited four documents. Yuan cited