《后汉书·律历下》勘误

中华书局版《后汉书·律历志》存在两方面错误一是讹、漏、错简等原版本的错误，二是在点校过程中新增加的错误。用现代天文学和算学知识，对其中的历法计算方法加以检查，改易标点7处，删字11，增字31，改字7，总得勘误56条。

Corrigenda in the 3rd Part of the Chaper "The Studies of Music and the State of Calendar" in A History of the Latter Han Dynasty

There are errors contained in the 3 rd part of the chapter in the History of the Latter Han Dynasty (punctuated edition, Zhong Hua Publishing House, 1965): (1) Errors from the original text; (2) Errors from the punctuation and correction works. The writer takes a check on the calendar calculation in the work under examination by means of modern astronomical and arithmetical knowledge. He finds out 48 errors including 7 punctuations to be changed; 11 words to be deleted; 23 words to be added and 7 words to be changed.