Report on Subnormal Operators＆by J．WERMER 1
Report on Operator Algebras＆by R．V．KADISON 4
Report on Group Representations＆by I．M．SINGER 11
Contributed papers: 27
On an inequality for linear operators in a Hilbert space＆by ERHARD HEINZ 27
Linearly perturbed operators＆by FRANZ RELLICH 30