Quests and Questions Concerning Quarks

Some seven months after the announcement of evidence for quarks by Charles B. A. McCusker and his colleagues at the University of Sydney, more evidence has come forth from a second experiment. William T. Chu and Young S. Kim of Ohio State University, W. J. Beam of Rose Polytechnic Institute and Nowhan Kwak of the University of Kansas claim to have observed one track that could be interpreted as a quark after examination of cosmic‐ray tracks in 10 000 pictures exposed in the Argonne 40‐inch heavy‐liquid bubble chamber.