Actually there were not ratified by a “show of hands”. The floor manager at the time would have said something along the lines of “Mr. President (here referring ot the President of the Senate, who in fact is usually a member of the majority party sitting in as acting President pro-tem) I ask for unanimous consent for the passage of the following as referred from committee...(list of bill numbers).” Unless a member vocally objects, the measures are passed.
The senate does not do shows of hands. You have to have your vote physically recorded during a roll call vote or a measure is passed via UC.
Unless a member vocally objects, the measures are passed