XVI 
INTRODUCTION. 
care the places at which they were respectively procured ; and it 
is hoped, that the papers in the Appendix, relating to Natural History, 
will shew that no great loss to tliat branch of science has been 
sustained, by the absence of a professional naturalist in the Expe- 
dition. In fact. Captain Sabine, in a great degree, supplied the 
place of a person of this description; and to him, in particular, 
the Appendix will shew, that science and philosophy stand greatly 
indebted for a collection of facts and experiments, in a part of the 
world hitherto but little known, and never before visited by Eu- 
ropeans. 
