Found the following hamletworks.org entries referring to line 68

View Commentary Note for 68
68 Bar. How now {Horatio,} <Horatio?> you tremble and looke pale,1.1.53

View Immaterial Textual Note for 68
68 Bar. How now {Horatio,} <Horatio?> you tremble and looke pale,1.1.53

View Material Textual Note for 68
68 Bar. How now {Horatio,} <Horatio?> you tremble and looke pale,1.1.53

View Commentary Note for 69
69 Is not this somthing more then phantasie?1.1.54