机械学、弹道学、海洋绘图学、气象学、地理学、地质学等等书籍所占的位置不下于自然科学的书籍，我明白这些都是船长研究的重点。

　　There I saw the complete works of Humboldt, the complete Arago, as well as works by Foucault, Henri Sainte-Claire Deville, Chasles, Milne-Edwards, Quatrefages, John Tyndall, Faraday, Berthelot, Father Secchi, Petermann, Commander Maury, Louis Agassiz, etc., plus the transactions of France's Academy of Sciences, bulletins from the various geographical societies, etc., and in a prime location, those two volumes on the great ocean depths that had perhaps earned me this comparatively charitable welcome from Captain Nemo.

　　我看见架上有韩波尔全集、阿拉哥全集，以及傅戈尔、亨利·圣·克利·德维尔夏斯尔、密尔·爱德华、卡特法日、邓达尔、法拉第、白尔特洛、薛希修道院长、别台曼、莫利少校、阿加昔斯等人的著作；科学院的论文，各国地理学会的会刊等等也有。我写的那两本书也放在明显的位置上，我能得到尼摩船长的相当宽大的接待，大概就是由于这两本书。

　　Among the works of Joseph Bertrand, his book entitled The Founders of Astronomy even gave me a definite date; and since I knew it had appeared in the course of 1865, I concluded that the fitting out of the Nautilus hadn't taken place before then.

　　在伯特兰的著作中间，他的那部《天文学的创始人》，竟使我推算出这只船制造的确实日期；我知道这部书是于1865年出版，由此可以断定，诺第留斯号下水是在这一个时期之后。