Evening Republican, Volume 21, Number 158, Rensselaer, Jasper County, 21 July 1917 — Submarine Practice. [ARTICLE]

Submarine Practice.

Submarine practice Is a dally feature on board English and American passenger ships crossing the Atlantic. A small black box, flying a black flag, Is lowered and allowed to float a certain distance away from the vessel. Then the gunners open fire on the “Kaiser,” as the black box with its piratical flag is named.