Volume 6 - Issue 2 - July 1981

  On calculation with non-commutative factors and its   
   application to group theory
   J. Nielsen (Editor B. H. Neumann)
   pp. 7385

Mathematical reconstruction techniques in computer   
   axial tomography
   David M. Panton
   pp. 87102

Population proportions and sample frequencies: a new   
   look at an old problem
   Peter D. Finch
   pp. 103109

Interest rates in perspective; and a new inequality
   John A. Rickard, Allen M. Russell
   pp. 111121

APL as a mathematical notation and a programming language
   K. W. Smillie
   pp. 123135

  Index to Volume 6