4 APRIL 1970, page 12

Science

Buried treasure PETER J. SMITH The assessment of the world's mineral rei serves is a notoriously hazardous business, and past predictions have so.often been wide of the mark.......

Medicine

Why animals? JOHN ROWAN WILSON There are few more emotional subjects than that of vivisection. It is the kind of issue on which both sides have over the years en- trenched......

A Hundred Years Ago From The 'spectator', 2 April 1870—mrs

Faw- cett delivered last week at Brighton a very temperate and clever lecture in favour of ex- tending the political franchise to women, — a lecture of which any unprejudiced......