Paper, 'Dichiaratione d'una barcha guidata, che doi huomini muovono contra una corrente quelche con 15 huomini non si potra far' [Description of a boat that can be sailed against a powerful current by two men] by unknown author Description of the design of a boat that can be pulled from the shore against a current. The four wheels will do the work of rowers and are moved by the pulling of the ropes that make the wheels turn. Subject: Engineering / Shipbuilding 17th Century