Found the following hamletworks.org entries referring to line 3639-40

View Commentary Note for 3638, etc.
3638-9 Ham. Sir I will walke heere in the hall, if it please | his Maiestie, {it} 
3639-40 {is} <‘tis> the breathing time of day with me, let | the foiles be brought, the 

View Immaterial Textual Note for 3638, etc.
3638-9 Ham. Sir I will walke heere in the hall, if it please | his Maiestie, {it} 
3639-40 {is} <‘tis> the breathing time of day with me, let | the foiles be brought, the 

View Material Textual Note for 3638, etc.
3638-9 Ham. Sir I will walke heere in the hall, if it please | his Maiestie, {it} 
3639-40 {is} <‘tis> the breathing time of day with me, let | the foiles be brought, the