^{BMOCA BOULDER MUSEUM OF CONTEMPORARY ART -NATURAL SELECTION 2004}

^{BEYOND BAROQUE GALLERY VENICE CA - DEAD MAN DRAWING- 2000}

^{SFMOMA SAN FRANCISCO MUSEUM OF MODERN ART RATIONAL(E)S 1983}

^{LE CENTRE D'ART CONTEMPORAINE, GENEVA ADDITITIVE/SUBTRACTIVE 1980}

^{DARTMOUTH COLLEGE MUSEUM - PLATO'S PERFECTION INVERSED 1979}

^{P.S.1 MUSEUM NEW YORK PLATO'S PERFECTION INVERSED1978}

^{C.R.A.C.A.P - WILD HORSES - AND - FOR GORDON - ILE DE MACAU, BORDEAUX FRANCE1977-8}

^{C.R.A.C.A.P AND NEUE MUSEUM - FOR GORDON - ILE DE MACAU, BORDEAUX FRANCE 1977-8}

^{PARIS - SCULPTURE - ARCHIMEDES, PYTHAGORAS AND CATASTROPHE THEORY- 1975}

^{SNOW WORKS/EARTH WORKS 1969-78}