Об отношении языка славянского

Bok av &1040.&1060. ???????????
This book, "Ob otnoshenii yazyka slavyanskogo k yazykam rodstvennym", by A.F. Gilferding, is a replication of a book originally published before 1833. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible.