File:South End Grounds diagram Boston 1899 Feb 21.png

Summary
Survey notes concerning a possible rule to limit home runs at South End Grounds to fair balls hit 285 feet or more (the proposal was eventually defeated). Exact measurements of the foul lines are shown: left field 245 feet 3 inches; right field 246 feet 5 inches. Heights of all walls, 12 feet. From Boston Globe, Feb 21, 1899, p.5.