6 
INTRODUCTION. 
with relation to the areas of recent elevation, and to 
the points subject to volcanic eruptions, fully accord 
with this theory of their origin. 1 
1 A brief account of my views on coral formations, now published 
in my Journal of Researches, was read May 31, 1837, before the Geo- 
logical Society, and an abstract has appeared in the Proceedings. 
