I'll digress to recommend
Two Years Before the Mast by Richard Henry Dana
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THIS specific printing is a good one because it is clearly scanned and contains the two prefaces. Although some of the more recent printings also include a third preface.
This is a historic journal of a common sailor in the between 1834 and 1836 describing life at sea.
From the preface:
In the following pages I design to give an accurate and authentic narrative
of a little more than two years spent as a common sailor, before the
mast, in the American merchant service. It is written out from a journal
which I kept at the time, and from notes which I made of most of the
events as they happened; and in it I have adhered closely to fact in every
particular, and endeavored to give each thing its true character. In so
doing, I have been obliged occasionally to use strong and coarse expressions,
and in some instances to give scenes which may be painful to nice
feelings; but I have very carefully avoided doing so, whenever I have not
felt them essential to giving the true character of a scene. My design is,
and it is this which has induced me to publish the book, to present the
life of a common sailor at sea as it really is—the light and the dark
together.
It is a great read, perhaps the more so for being unadorned non-fiction.
Enjoy!