Universities logaAt the University of Leeds, England, in the School of Physics & Astronomy, where Dr Kass was a Research Assistant, work was carried out in collaboration with the University of Michigan, Department of Physics, on the search for the building blocks of matter (1/3e Quarks). The Leeds Cloud Chamber, the largest of its kind in the world, was used to enable the search in large cosmic-ray air showers. Dr Kass was awarded a Ph.D. by the University of Leeds for his work.