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. 
CHAP 1 
EUROPE. 
EUROPE CONSIDERED AS A ZOOLOGICAL PROVINCE. —— THIS PRO- 
POSITION SUPPORTED BY AN ANALYTICAL SURVEY OF ITS 
ORNITHOLOGY. PREPONDERANCE OF ITS GENERIC TYPES.— 
Irs ANALOGY TO THE CAUCASIAN TYPE OF MAN. — RESULTS 
OF THE FOREGOING ANALYSIS, —ITS ZOOLOGY CONSIDERED 
MORE IN DETAIL, UNDER THE THREE HEADS OF ARCTIC, 
CENTRAL, AND SOUTHERN EUROPE. 
(23.)Tur 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 all 
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 
