Alec Hepburn and Arron Reed have also joined up with the squad preparing for Saturday's meeting with Ireland.
Hepburn, Reed and Ferrie make a return to the national team training environment having been involved in the A match against Italy at the start of the campaign.
Alex Samuel made his Scotland debut against Portugal in November 2024 and has won two more caps in the time since.
Gregor Brown (calf), Scott Cummings (hamstring), Adam Hastings (shoulder), Nathan McBeth (ankle), Elliot Millar Mills (groin) Duhan van der Merwe (ankle), have returned to their clubs for further assessment on injuries.
Seb Stephen has also returned to Glasgow Warriors.