Very clearly read. I'm afraid a few issues.
There were 8 deviations which did not alter meaning at all so I won't list them.
7 others seemed worth mentioning, 2 of which are definitely significant (marked with an asterisk below).
6:50 I heard "wealth" but it is written "health"
10:13 I heard "dose" and indeed that is what is written but I think what he probably said was "close". If I'm right, it's very easy to see how this occurred as it's a classic transcription typo. @Kevin do you know if this is correct and if so, the Librivox policy? Should it be left as the Gutenberg text or as the original?
*17:32 - There is a whole sentence missing "I recommend ..... 75 cents"
18:20 I heard "should" result but it is written "would" result - seems minor but a reasonably important meaning issue arises
22:12 I hear "other" countries but this word is not present in the text - pretty minor and debatable so feel free to ignore if you wish
*24:16 - 24:33 a whole sentence is repeated incorrectly "I want to ....."
29:50 there is a roughly 5 second gap between sentences which would be improved by being reduced.