102 



OEDINAEY GENEEAL MEETING* 

 Captain G. P. Heath, E.ISr. (Eet.), in the Chaiu. 



The Minutes of the previous Meeting were read and confirmed. 

 Electiox. — Mrs. A. E. von Braun Avas elected a Member. 

 The following paper was then read by the Author : — 



THE HISTORY OF THE SPREAD OF THE EURO- 

 PEAN FA UNA. By Professor J. Logan Lobley, F.G.S., 

 E.E.G.S. 



CONTENTS. 



Introduction 



Geographical Changes .... 

 Autochthonous Species .... 

 Soutli-Eastern Immigrants 

 Arctic Immigrants 

 North-Eastern Immigrants 



PAGE 



102 

 104 

 106 

 108 

 111 

 114 



Introduction. 



IT is impossible to adequately present the complex subject 

 of the history of tlie spread of the European Fauna in a 

 single paper. All that can be attempted is such a general 

 conspectus as may serve to show the interest and importance 

 of the enquiry, as well in itself as in the assistance it gives 

 towards the solution of geographical and geological problems. 



Although tliis subject received the attention of that great 

 teacher of geology, Sir Charles Lyell, and was presented more 

 fully by Professor Edward Forbes in 1846, followed by the 

 biological and geographical work of Dr. Sclater and Dr. Eussell 

 Wallace, it is only lately that it has become prominent, and 

 this largely due to the researches of German, Eussian and 



^ Monday, February 18th, 1907. 



