the U.S.A. 16: Remained at the Lake loading cargo. 17: Left in the Hercules at 9 A.M. Day clear bright. An amber river at the Bottom locks. Here we passed thru 3 locks + were raised each time about 2 feet to the top level of Bottom Lake. The locks worked perfectly + the water came in from below rapidly working up with a hissing sound like a whirlpool. In 10 minutes the lock was filled then the gates opened + we went to the next lock. Electric engines pulled the boat thru a steadiest her while she used her own motive power in passing from one lock to another. At Columbus cut we met several dredgers anchored at the handslip on which they make several hours each day when the canal is closed. The slips were very extensive toward many yards or up few acres. The rock was a green trap rock with capped by a long red grain.