The Voyage of the Beagle

I have stated in the preface to the first Edition of this work, and in the Zoology of the Voyage of the Beagle, that it was in consequence of a wish expressed by Captain Fitz Roy, of having some scientific person on board, accompanied by an offer from him of giving up part of his own accommodations, that I volunteered my services, which received, through the kindness of the hydrographer, Captain Beaufort, the sanction of the Lords of the Admiralty.

我在本作品第一版的序言中，以及在《贝格尔号航行的动物学》中已经提到，是因为菲茨罗伊船长希望有一位科学人士随船，并提出愿意让出他自己的部分住宿空间，我才自愿提供我的服务，这些服务得到了水道测量师比弗尔特船长的善意批准，以及海军部的批准。

and to add that, during the five years we were together, I received from him the most cordial friendship and steady assistance.

并补充说，在我们在一起的五年里，我从他那里得到了最热情的友谊和坚定的帮助。