8 NATURE OF GEOLOGICAL WORK. 



theory must be judged, and to which also all good observations and 

 sound inductions must be referred. To develop these principles in a 

 settled order, to illustrate by their aid the geological structure of the 

 British isles, and to connect and correlate the geology of Britain with 

 that of Europe and other parts of the globe, and thus rise by a legiti- 

 mate process to those comprehensive inferences which the subject 

 admits of, is the aim of the following pages. 



