李思敬先生的《汉语“儿”［］音史研究》（商务印书馆，下称《儿音史》）于１９８６年初版。通读一遍，感到本书在当时的音韵学研究领域，不啻流出了一泓清泉，因而当时就有写一篇评介文章的打算。但由于连年出差，奔波于滇西南调查拉祜语，并主编《中国拉祜语方言地图集... Mr. Li Sijing’s “Chinese” [“History of Tone Records” (Commercial Press, hereinafter referred to as “History of Tone”) was first published in 1986. Read through again, feel the book in the field of phonology at the time, not out of a clear Qingquan, so there was an article to write a review of the plan. However, due to travel for many years, rush to investigate pull Lao language in southwestern Yunnan, and editor of "China Lahu dialect atlas ...