translation

Collections of documents do not usually excite the interest of other than specialists in the field they discover.
馆藏文件一般很难激起人们的兴趣，除非是在这个领域的专家（才会对其感兴趣）。
This set of American state papers on China,spanning the century since 1839,is an agreeable exception to the general rule.
这一套关于中国从1839年开始横跨了世纪的美国国家报告，却是一般规律外的一个例外。
for one thing ,it gains life and color by including a wide selection of Despatches from Ministers in China and Instructions sent out from Washington by the State Department .
就因为一点，因其内容广泛地涵盖了从中国部长们发出的急件和由华盛顿的美国国会发出的指示。
附：State Department (美国)国务院

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