Found the following hamletworks.org entries referring to line 837

View Commentary Note for 837
837 Ham. Neuer make knowne what you haue seene to night.1.5.144

View Immaterial Textual Note for 837
837 Ham. Neuer make knowne what you haue seene to night.1.5.144

View Material Textual Note for 837
837 Ham. Neuer make knowne what you haue seene to night.1.5.144