Abstracts and papers written in Korean presented in the 26th meeting of the Korea Quaternary Association held at Kongju University in November, 1999 are reviewed with an attention to such as writing well in Korean. Paragraphs and sentences of manuscripts are dotted with words and expressions of foreign languages such as Japanese, Chinese, English, and very long sentences. Undesirable expressions include also contradictory meanings, difficult expressions using Chinese characters, and incorrect sentences and wordings, and etc. Some recommendations for good manuscripts written in Korean are suggested. They include reading of science books for general readers and drilling for writing good manuscripts in Korean. Writing manuscripts in ample time, discussions with colleagues, and open-minded mentality of authors to accept critics are included in the drilling for writing good manuscripts. Editorial board should also check the manuscripts before printing.