PREFACE. 



The Meetings of the British Ornithologists' Club held 

 during the 15th Session have again been well attended, 

 the total number of 387 attendances including 3.26 Members 

 and 61 Visitors, showing an average of 43 per Meeting, and 

 a slight increase over the previous Session. 



1906. 1907. 

 Total number of Members and Visitors . 385 387 

 Largest number on one evening 73 72 



The present volume contains an unusually large number 

 of descriptions of interesting new species, which have been 

 procured chiefly by the Alexander- Gosling Expedition, the 

 members of the Ruwenzori Expedition, Dr. W. J. Ansorge, 

 Mr. H. C. Kobinson, Mr. Walter Goodfellow, and other 

 well-known travellers. 



Volume XX._, constituting the Report on the Immigrations 

 of Summer Residents in the Spring of 1906, published in 

 April 1907, will be found to contain a large number of 

 interesting facts. 



The ornithological world has sustained an irreparable loss 

 in the death of Prof. Alfred Newton, which took place at 

 Cambridge on the 7th of June, 1907. His work will always 

 remain, a lasting monument of his greatness, combining as 

 it does an unrivalled knowledge with a scholarly method 

 of treatment, and a delightful command of the English 

 language rarely attained in works of the present day. 



(Signed) W. R. OGILVIE-GRANT, 



Editor. 



August 8th, 1907. 



