18 ON THE GEOGRAPHY OF ANIMALS. 



be found among the marine tribes ; but even these 

 would enjoy a much wider range, had not the persecutior 

 and the increased population driven them, and restricted 

 their limits, to the Arctic solitudes. 



CH\P. II. 



EUROPE. 



EUROPE CONSIDERED AS A ZOOLOGICAL PROVINCE. THIS PRO- 

 POSITION SUPPORTED BY AN ANALYTICAL SURVEY OF ITS 



ORNITHOLOGY. PREPONDERANCE OP ITS GENERIC TYPES. 



ITS ANALOGY TO THE CAUCASIAN TYPE OF JIAN. RESULTS 



OF THE FOREGOING ANALYSIS. ITS ZOOLOGY CONSIDERED 



MORE IN DETAIL, UNDER THE THREE HEADS OF ARCTIC, 

 CENTRAL, AND SOUTHERN EUROPE. 



(23.)The first of the zoological provinces intimated in the 

 last chapter appears, on a cursory view, to be the most 

 objectionable. For not only has it never been viewed in 

 this light, but, from its close connection to that of Asia, 

 it is also peculiarly difficult to characterise. Fully im- 

 pressed with this difficulty, we considered it essential to 

 the clear elucidation of our present theory, to institute a 

 minute enquiry into those facts upon which alone aU 

 such theories can be supported. The quadrupeds of 

 Europe are too few, and their original distribution have 

 been too much altered by the progress of civilisation, 

 to furnish satisfactory results. The insects, on the con- 

 trary, are too numerous, and the reptiles too insignificant, 

 for our purpose ; while the distribution of the ma- 

 rine animals, peculiarly difficult under the most favour- 

 able circumstances, has been hitherto neglected. We have 



