Hi,
     I found interesting source for maritime books free download.

   there are some books for ship modelling.  >   http://www.libramar.net/

    =>  http://www.libramar.net/news/ship_modeling/1-0-12 

  you can find  more interesting books here too  --  wishing success !

greetings  Tom

 

just a note that on the second link, the last 5 books are still in copyright. Public domain is  books published before 1923 or 1924 at this point.
The falconer is available on
http://books.google.com
at 36 mb
rather that 210 mb (probably scanned at 300 dpi