David Cameron has urged the No campaign to continue promoting "a secure future" for Scotland as part of the UK compared with the "insecurity" of independence.
The Prime Minister was speaking this morning at a marine engineering company in Loanhead, Midlothian that makes parts for Royal Navy submarines.
"I think it's certainty versus uncertainty, a secure future versus insecurity, the known versus the unknown and the warmth of the UK family of nations versus an irreversible decision to separate," Mr Cameron said.
"And I think if the No campaign makes that argument, which is a mostly positive argument but is not frightened of calling out the Yes campaign on their totally failing to answer the question, then I'm sure we can secure the right result."
With just a few weeks to go until the Scottish independence referendum takes place, here are some key facts about the vote.
An investigation has been launched after listings appeared on eBay offering to sell votes in the upcoming Scottish independence referendum.
Bounce for leaving the union following second debate this week, but only 43% expected to vote yes in referendum on September 18