22 MAY 1971, page 9

Science

Matter of degree BERNARD DIXON It's tempting to leave such intimidating con- undrums as the purpose of science to the philosophers, to working scientists (who know about these......

The Nation's Wealth

The tariff trail By 'AN ECONOMIST' So many clues have been scattered about in the last few days pointing to the true pur- pose of the Heath administration's economic policies......