Excerpt from The First Iron-Clad Naval Engagement in the World: History of the Facts of the Great Naval Battle Between the Merrimac-Virginia, C. S. N. And the Ericsson Monitor, U. S. N. Hampton Roads, March 8 and 9, 1862
Were the present a period Это и многое другое вы найдете в книге The First Iron-Clad Naval Engagement in the World (E. V. White)