This is probably a really stupid question! I am guessing I need to ask someone I know if they have any I can have? ???
It's better to wait until the frogs turn up & breed on their own, they invariably do. Moving spawn from one pond to another can spread ranavirus.
Unless you know someone up in Scotland I think it is way too late for frog spawn. Tadpoles have been swimming about in my pond for a long time now and I suspect that is the general situation across the country.
:-[ oh well I saw a frog at the lottie yesterday so hopefully next year they might find my little puddle.