NEW GEOLOGICAL PROBLEM
... More than half a century ago our city was the field of frequent contentions between the Hut- tonians and Wernerians; and Arthur's Seat, Salisbury Crags, the Castle Rock, and Calton Hill, formed the standing texts for many an animated and eloquent lecture. The matters then in dispute have been long since settled, and common consent now ascribes the formation of the earth's crust partly to fire ...