Found the following hamletworks.org entries referring to line 2577+9

View Commentary Note for 2577+9
2577+9 {When in one line two crafts directly meete,} 2577+9 

View Immaterial Textual Note for 2577+9
2577+9 {When in one line two crafts directly meete,} 2577+9 

View Material Textual Note for 2577+9
2577+9 {When in one line two crafts directly meete,} 2577+9