Contributors

DR. D. D. Adams—Senior Research Officer, New Zealand Medical Research Council, Medical School, Dunedin.

G. J. Barnard—Data Processing Consultant, Auckland.

J. S. Hungerford—Production Engineer, Wellington Gas Co. Ltd, Wellington.

J. F. Beachenx— Sarnson Paints Ltd, Auckland.

E. J. Brown— Senior Rediation Officer, National Radiation Laboratory, Christ church.

F. R. Callaghan—Scientific Adviser to the New Zealand Wol Board, Wellington.