PART I. 
CHAPTER 1. 
INTRODUCTION. 
In the present state of Geological knowledge, when 
every fact, connected with and tending to elucidate 
the subject, is of importance, and, at a time when an 
ardent and laudable thirst for enquiry into this de- 
partment of Natural History so universally prevails, 
I venture to hope, that the following pages, giving 
some account of the Calcareous Rocks of Plymouth, 
and their contents, will meet with a favourable recep- 
A 
