Art: Private View: George Wyllie Rebecca Hossack Gallery, London W1

The Scottish sculptor George Wyllie will be 80 next year, which makes him a senior figure in the world of British art, at least by age. He ought to claim seniority in other respects as well, yet he's never quite found the reputation that he deserves, probably because much of what he does has a humorous side, and serious people don't like to smile in the face of art.

Wyllie is well-known in Scotland where his pronouncements appear regularly in the popular press. Works like the giant straw locomotive that he suspended over the Glasgow Garden Festival, or the 80ft paper boat which he set sail from the Clyde to New York, have an enduring place in the visual memory of the nation, yet there's nothing of his work in the major public collections and he rarely appears in surveys of sculpture today.

It's a shame, because he is a philosopher as well as a joker, a bit of a poet and always an artist. He makes things wherever he goes and a good number of them linger in the imagination long after the event. The current exhibition "Air and Stone and all that's in between" is a sort of retrospective, as well as introducing some new work that suggests a mind that's as fresh as ever.

`George Wyllie', Rebecca Hossack Gallery, 35 Windmill Street, London W1 (0171-436 4899) to 22 May