I'm not finished this book quite yet, but so far I like it. So long as Conseil's and the Professor's lengthy classifications of aquatic life don't occupy more than half of the book. Every time I read those sections my body and mind threatens to fall asleep on me! Then I get to the adventurous parts and I'm wide awake again. I just wish those parts occupied more of the book. Thanks for your time...and I do suggest reading 20 000 Leagues Under the Sea, especially if you're a naturalist!