No, I think you have to print the page to PDF and then rotate it in Acrobat or Preview or something. Or you can take a screenshot of the chart and then rotate it in whatever app you use to view that in. Anyway who publishes an ebook with broadside art? That's just stupid.
Thanks for your reply, Dog of War. I will try the tips you've suggested. I agree, it's crazy to publish an ebook with broadsides; it seems to be an oversight on the publisher's part (hasty to cash in on e-publishing).