It is public domain, but as others have said the owner or library is likely using contract law to force some restrictions. The book 'Copyfraud' is good read to

It is public domain, but as others have said the owner or library is likely using contract law to force some restrictions. The book 'Copyfraud' is good read to get some more info about what's going on here (http://www.copyfraud.com/ http://www.copyfraud.com/).