Found the following hamletworks.org entries referring to line 112

View Commentary Note for 101
101 Dar'd to the combat; in which our valiant Hamlet,1.1.84

View Immaterial Textual Note for 112
112 His fell to Hamlet; now Sir, young Fortinbrasse1.1.95

View Material Textual Note for 112
112 His fell to Hamlet; now Sir, young Fortinbrasse1.1.95