Found the following hamletworks.org entries referring to line 686

View Commentary Note for 686
686 When I to {sulphrus} <sulphurous> and tormenting flames1.5.3

View Immaterial Textual Note for 686
686 When I to {sulphrus} <sulphurous> and tormenting flames1.5.3

View Material Textual Note for 686
686 When I to {sulphrus} <sulphurous> and tormenting flames1.5.3