of exceptional interest, especially those exhibited by Miss 

 Maud Haviland of Bird-life in Northern Siberia, and by 

 Lord Eothschild depicting the three faunal regions of 

 Algeria. 



A notable feature of the Session has been the institution 

 of organised Discussions on subjects of general Ornithological 

 interest. The subjects which came under discussion during 

 the past Session were : — 



1. (At the February Meeting). " Coloration as a Factor 



in Family and Generic Differentiation," opened by 

 Dr. P. R. Lowe ; and 



2. (At the June Meeting). "The Effect of Environment 



on the Evolution of Species_," opened by Lord 

 Rothschild, F.R.S. 



Further information with regard to this new policy of 

 the Club, which has proved so successful, will be found on 

 pp. 31, 32, 40, and 41 of the present volume. 



Owing to the war no Ornithological expeditions of note 

 have left England, several which were arranged to take 

 place having been cancelled. 



(Signed) • DAVID A. BANNERMAN, 



Editor. 

 London, Augud 1915. 



