Found the following hamletworks.org entries referring to line 377

View Commentary Note for 337
337 Then I to Hercules, within a month,1.2.153

View Commentary Note for 376
376 Ham. {A} <He> was a man take him for all in all 

View Commentary Note for 377
377 I shall not looke vppon his like againe.1.2.188

View Material Textual Note for 377
377 I shall not looke vppon his like againe.1.2.188