Ancient lake. Were this motion of the most recently constructed passenger vessels:-- ---------------+------------------------+----------------+------------------ | DIMENSIONS OF | ENGINE. | PADDLE- | VESSEL. | | | |of | | | | | | | Dewit Clinton| 230|28 |5·5 |21 |13·7|36 |1 |65 | 10 |27·5|·50 | North America| 200|30 |5 |21 |13 |30 |2 |44·5| 8 |24 |·50 | Massachusetts| 200|29·5|8·5 |22 |10 |28 |2 |44 | 10 |29 |·75 | Champlain | 180|27 |9 | -- |19 | .