168 Recently published Ornithological Works. [Ibis, 



about eleven days after the first set is taken ; that the second 

 and third nests are placed in similar situations to the first 

 and on an average about QQ yards away ; that the second 

 and third clutches of eggs are similar in shape, colour, and 

 markings to the first, but frequently differ in size and 

 are generally smaller. Mr. Mousley's observations were 

 made chiefly on (American) Warblers in the southern part 

 of the Quebec Province of Canada. 



The fact that the horny lining of the gizzard in birds is 

 periodically shed and regurgitated was first pointed out by 

 the late Mr. Bartlett, in tlie Zoological Gardens in London, 

 in the case of the Hornbills. Mr. McAfee contributes a 

 paper on this subject dealing especially with the case of the 

 ducks, in which he believes this phenomenon is of frequent 

 and regular occurrence. 



There are many other contributions some of which have 

 been already noticed in our pages, while others must be 

 passed over, as this notice has already been unduly lengthy. 

 Finally, we must mention that the present volume con- 

 tains portraits with appropriate memoirs of three recently 

 deceased Fellows of the American Ornithologists' Union — 

 D. G. Elliot, W. W. Cooke, and F. E. L. Beal. 



The AvicuUural Magazine. 



[The Avicultural Magazine : being the Journal of the AvicuUural 

 Society for the study of foreign and British birds in freedom and 

 captivity. Edited by Hubert D. Astley, M.A., &c., &c. Third Series. 

 ■Vol. viii. November 1916 to October 1917.] 



With the completion of this volume Mr. Astley, who has 

 edited the Magazine for nearly five years, resigns his task. 

 All the Members of the Society, as well as otiiers with a 

 love for birds and bird-keeping, will regret that he has 

 found it necessary to take this step. He has most ably 

 and indefatigably carried out a most difficult task in keeping 

 up the standard of the magazine through the last three 

 difficult years of war. We wish him a well-earned repose 

 and hope that his successor will be able to maintain the 

 magazine at the same pitch of excellence. 



