CHAPTER IX. OFFICIAL REGISTER.

 1. Congress, in 1816, passed an act authorizing¹ and requiring the Secretary of State, once in two years, to print and publish a book called “the official register,” in which he was ordered to register the name of every officer and agent of the government, in the civil, military and naval² departments, including cadets and midshipmen, together with the compensation received by each; the names of the State and county where born; and the name of the place where employed, whether at home or abroad.

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To the list of persons employed in the Navy Department, the Secretary of the Navy is required to subjoin the names, force and condition of all the ships and vessels³ belonging to the United States, and when and where built.

This work has been published and distributed, as the law directs, ever since the passage of the act, and is sometimes denominated “the blue book.” It is a very convenient and useful publication, as it shows in compact form the whole official force of the government in each department, together with the cost of maintaining it.

As it contains only names and dates and facts relating to persons, comparatively few would take the pains to read it, and but a small number is published. It can be found in the Congressional library at Washington, where twenty-five copies of each edition are deposited.

1 authorizing   

授权，批准，委托( authorize的现在分词 )

参考例句：

• Letters of Marque: Take letters from a warning friendly power authorizing privateering. 私掠许可证：从某一个国家获得合法抢劫的证书。
• Formal phavee completion does not include authorizing the subsequent phavee. 阶段的正式完成不包括核准随后的阶段。

2 naval   

adj.海军的，军舰的，船的

参考例句：

• He took part in a great naval battle.他参加了一次大海战。
• The harbour is an important naval base.该港是一个重要的海军基地。

3 vessels   

n.血管( vessel的名词复数 )；船；容器；（具有特殊品质或接受特殊品质的）人

参考例句：

• The river is navigable by vessels of up to 90 tons. 90 吨以下的船只可以从这条河通过。 来自《简明英汉词典》
• All modern vessels of any size are fitted with radar installations. 所有现代化船只都有雷达装置。 来自《现代汉英综合大词典》