Slight thread drift. Re erroneous books.
There are sometimes those errors made with such conviction they leave you, for a while, worried about even your own sanity. I was browsing a bookstore a few years ago and found a book about the failure of materials in aviation. Somewhere in the middle there was a page in which the author announced that wood, as a material eventually was replaced by metal because the latter was less susceptible to fire. He then went on to say that typically Spitfire and Me109s were prone to catching fire in combat because of their wood construction.
I had to read that four or five times because I had always believed they were metal aircraft. It took me until half way back to my hotel to catch myself mentally. I know perfectly well what they are made of. I have touched them (Spitfires at least,) since i was five years old but the faux pas was so astonishing it made me question everything I know.