This book is the first major cross-linguistic study of 'flexible words', i.e. words that cannot be classified in terms of the traditional lexical categories Verb, Noun, Adjective or Adverb. Flexible words can - without special morphosyntactic marking - serve in functions for which other languages must employ members of two or more of the four traditional, 'specialised' word classes. Thus, flexible words are underspecified for communicative functions like 'predicating' (verbal function), 'referring' (nominal function) or 'modifying' (a function typically associated with adjectives and e.g. manner adverbs). Even though linguists have been aware of flexible world classes for more than a century, the phenomenon has not played a role in the development of linguistic typology or modern grammatical theory. The current volume aims to address this gap by offering detailed studies on flexible word classes, investigating their properties and what it means for the grammar of a language to have such a word class. It includes new cross-linguistic studies of word class systems as well as original descriptive and theoretical contributions from authors with an expert knowledge of languages that have played - or should play - a role in the debate about flexible word classes, including Kharia, Riau Indonesian, Santali, Sri Lanka Malay, Lushootseed, Gooniyandi, and Late Archaic Chinese.

汉成帝河平三年（前26）刘向奉诏校理汉朝所藏的图籍。刘向在每种书整理完成后，“条其篇目，撮其指意”，撰成《叙录》（或称《书录》、《叙奏》）随书上奏，后来被编成《别录》一书，是中国最早的群书提要目录。

王毓铨先生是我国著名的秦汉史和明史专家，对我国古代的货币起源及其发展尤有系统的研究。本书包括了作者最重要的著作，特别是不少散见于各报章杂志的著作，这次亦收入了本书，全面反映了作者的学术成就。本书共分4卷：一卷为中国古代货币的起源和发展；二卷为莱芜集；三卷为莱芜续集，四卷为明代的军屯。
毓铨写出的文章，既宏观又有微观，故能从发展上和全面上看待作何一点一面的历史问题，得出有创新之见的新论。如《明黔国沐氏庄田考》一文，在中国社会史研究中可以说是有创新，有突破、第一流的好文章。读者自己去读他的文集吧。